@article{Alt1970,
  author    = {Alt, Helmut},
  title     = {Entwicklungstendenzen der Sicherheit und der notwendigen Reserveleistung beim Verbundbetrieb der Kraftwerke},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {69},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {25},
  publisher = {VWEW-Energieverlag},
  address   = {Frankfurt/Main},
  issn      = {0013-5496},
  pages     = {672 -- 678},
  year      = {1970},
  language  = {de}
}
@article{Lepers1972,
  author    = {Lepers, Heinrich},
  title     = {Integrationsverfahren zur Systemidentifizierung aus gemessenen Systemantworten},
  series = {Regelungstechnik},
  volume    = {20},
  journal   = {Regelungstechnik},
  number    = {10},
  publisher = {Oldenbourg},
  address   = {M{\"u}nchen},
  doi       = {10.1524/auto.1972.20.112.417},
  pages     = {417 -- 422},
  year      = {1972},
  abstract  = {F{\"u}r viele Zwecke ist es n{\"u}tzlich, von einem technischen System ein mathematisches Modell zu haben. F{\"u}r Systeme, die sich durch eine Verz{\"o}gerung h{\"o}herer Ordnung mit oder ohne Ausgleich beschreiben lassen, wird ein Identifizierungsverfahren vorgestellt, das aus gemessenen Zeitfunktionen die Bestimmung einer {\"U}bertragungsfunktion erm{\"o}glicht. Die Systeme werden dabei durch Testsignale erregt. Die Modellkoeffizienten werden dann mit Hilfe eines Integrationsverfahrens aus dem Testsignal und der Antwort des Systems auf dieses Testsignal bestimmt. Ein praktisches Beispiel zeigt die Leistungsf{\"a}higkeit des Verfahrens.},
  language  = {de}
}
@article{Lepers1972,
  author    = {Lepers, Heinrich},
  title     = {Empfindlichkeitsuntersuchungen zur Beurteilung von Optimierungen mit fehlerhaften Modellen},
  series = {Messen, Steuern, Regeln},
  volume    = {15},
  journal   = {Messen, Steuern, Regeln},
  number    = {11},
  publisher = {Oldenbourg},
  address   = {M{\"u}nchen},
  issn      = {0026-0347},
  pages     = {407 -- 410},
  year      = {1972},
  language  = {de}
}
@article{Alt1972,
  author    = {Alt, Helmut},
  title     = {Digitale Berechnung der Betriebsdiagramme von Hochspannungsleitungen},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {71},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {4},
  publisher = {VWEW-Energieverlag},
  address   = {Frankfurt/Main},
  issn      = {0013-5496},
  pages     = {87 -- 92},
  year      = {1972},
  language  = {de}
}
@article{Lepers1973,
  author    = {Lepers, Heinrich},
  title     = {Fehler bei der Systemanalyse aus stochastisch gest{\"o}rten Sprungantworten},
  series = {Regelungstechnik und Prozeß-Datenverarbeitung},
  volume    = {21},
  journal   = {Regelungstechnik und Prozeß-Datenverarbeitung},
  number    = {7},
  publisher = {De Gruyter},
  address   = {Berlin},
  issn      = {0034-3226},
  doi       = {10.1524/auto.1973.21.112.229},
  pages     = {229 -- 233},
  year      = {1973},
  abstract  = {Es wird von Gleichungen ausgegangen, mit denen die Modellkoeffizienten von Regelstrecken mit Ausgleich aus der gemessenen Sprungantwort ermittelt werden k{\"o}nnen. Die {\"U}bertragungsfunktion der Regelstrecke hat einen konstanten Z{\"a}hler und ein Nennerpolynom. Unter der Annahme, daß die ideale und exakte Sprungantwort des Systems durch ein stochastisches Signal gest{\"o}rt wird, wird untersucht, wie die Fehler der ermittelten Modellkoeffizienten von Kennwerten des St{\"o}rsignals und von der Meßzeit f{\"u}r die Sprungantwort abh{\"a}ngen. Durch eine Simulation auf dem Digitalrechner wurden die Ergebnisse kontrolliert. Es zeigt sich, daß durch eine Filterung der gest{\"o}rten Sprungantwort {\"u}ber einen Tiefpaß keine Verbesserung der Analyseergebnisse erreicht werden kann, da das Identifizierungsverfahren eine gl{\"a}ttende Eigenschaft hat.},
  language  = {de}
}
@article{HagemannGudatKunz1974,
  author    = {Hagemann, Hans-J{\"u}rgen and Gudat, W. and Kunz, C.},
  title     = {Photoabsorption of alloys of Al with transition metals V, Fe, Ni and Cu and Pr near the Al L₂,₃-edge},
  series = {Solid State Communications},
  volume    = {15},
  journal   = {Solid State Communications},
  number    = {3},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {0038-1098},
  doi       = {10.1016/0038-1098(74)91165-X},
  pages     = {655 -- 658},
  year      = {1974},
  abstract  = {The onset of Al 2p transitions of VAl₃, FeAl, NiAl, NiAl₃, CuAl₂, PrAl₂ and the disordered alloys V-Al (16 at \% Al, 28\%, 41\%), Fe-Al (11\%) is shifted up to 1.1 eV. New pronounced structure develops close to the onset which for NiAl agrees with a density of states calculation by Connolly and Johnson.},
  language  = {en}
}
@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {Auswertung von Pr{\"u}fungsergebnissen auf elektronischen Rechenanlagen},
  series = {Angewandte Informatik},
  volume    = {16},
  journal   = {Angewandte Informatik},
  number    = {5},
  publisher = {Vieweg},
  address   = {Braunschweig},
  issn      = {0013-5704},
  pages     = {219 -- 222},
  year      = {1974},
  language  = {de}
}
@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {Ab 1975 Uranerz aus Rabbit-Lake},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {24},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {1/2},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {34},
  year      = {1974},
  language  = {de}
}
@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {1,45 Mrd. DM f{\"u}r die Kohlevergasung},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {24},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {5},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {243 -- 244},
  year      = {1974},
  language  = {de}
}
@article{HagemannGudatKunz1975,
  author    = {Hagemann, Hans-J{\"u}rgen and Gudat, W. and Kunz, C.},
  title     = {Optical constants from the far infrared to the X-ray region: Mg, Al, Cu, Ag, Au, Bi, C, and Al₂O₃},
  series = {Journal of the Optical Society of America (JOSA)},
  volume    = {65},
  journal   = {Journal of the Optical Society of America (JOSA)},
  number    = {6},
  publisher = {Optical Society of America},
  address   = {New York},
  isbn      = {0030-3941},
  doi       = {10.1364/JOSA.65.000742},
  pages     = {742 -- 744},
  year      = {1975},
  language  = {en}
}
@article{Alt1975,
  author    = {Alt, Helmut},
  title     = {Elektro-Brikett-Zentralspeicherheizung soll die Spitzenlast der EVU schonen},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {25},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {4},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {148 -- 149},
  year      = {1975},
  language  = {de}
}
@article{LepersRakePuetter1976,
  author    = {Lepers, Heinrich and Rake, H. and P{\"u}tter, L.},
  title     = {Regelung der Qualitaet beim Brennen von Zementklinker},
  series = {Regelungstechnische Praxis : rtp},
  volume    = {18},
  journal   = {Regelungstechnische Praxis : rtp},
  number    = {4},
  publisher = {Oldenbourg},
  address   = {M{\"u}nchen},
  issn      = {0340-4730},
  pages     = {87 -- 91},
  year      = {1976},
  language  = {de}
}
@article{LepersRakePuetter1976,
  author    = {Lepers, Heinrich and Rake, H. and P{\"u}tter, L.},
  title     = {Prozeßrechnerautomatisierung von W{\"a}rmeprozessen in der Grundstoffindustrie},
  series = {Industrie-Anzeiger},
  volume    = {98},
  journal   = {Industrie-Anzeiger},
  number    = {17/18},
  publisher = {Konradin},
  address   = {Leinfelden-Echterdingen},
  issn      = {0019-9036},
  pages     = {286 -- 289},
  year      = {1976},
  language  = {de}
}
@article{LepersRakePuetter1976,
  author    = {Lepers, Heinrich and Rake, H. and P{\"u}tter, L.},
  title     = {Prozeßrechnerautomatisierung von W{\"a}rmeprozessen},
  series = {Elektro-Anzeiger},
  volume    = {29},
  journal   = {Elektro-Anzeiger},
  number    = {5},
  publisher = {Konradin},
  address   = {Leinfelden-Echterdingen},
  issn      = {0013-5518},
  pages     = {98 -- 101},
  year      = {1976},
  language  = {de}
}
@article{HagemannGudatKunz1976,
  author    = {Hagemann, Hans-J{\"u}rgen and Gudat, W. and Kunz, C.},
  title     = {Photoabsorption coefficient of alloys of Al with transition metals V, Fe, Ni and Cu and Pr from 30 to 150 eV photon energy},
  series = {Physica status solidi b},
  volume    = {74},
  journal   = {Physica status solidi b},
  number    = {2},
  publisher = {Wiley-VCH},
  address   = {Berlin},
  isbn      = {0031-8957},
  doi       = {10.1002/pssb.2220740211},
  pages     = {507 -- 521},
  year      = {1976},
  abstract  = {The absorption coefficient of VAI3, FeAI, NiAI, NiAl2, CuAI2, PrAl2, and of disordered V-AI (16 at\% AI, 28\%, 41\%) and Fe-AI (11\%) alloys has been measured in the region of the M₂,₃ absorption of the transition metals and the Labsorption of AI. The strong changes of the AI spectrum in the region of the 100 eV maximum upon alloying are explained as another evidence of the EXAFS (extended X-ray absorption fine structure) nature of these structures. The broad, prominent absorption peaks from the 3p excitations in V and Fe and from the 4d excitations in Pr are influenced only little on allyoing and thus appear to be of atomic origin. The fine structure at the onset of the Pr 4d transitions is identical in the metal and the alloy but differs from that of Pr oxide. The only M₂,₃ edge which is detectably shifted is that of Ni (up to 2.1 eV), whereas the onset of the AI L₂,₃ edge is shifted in all the alloys (up to 1.1 eV). The shifts are interpreted in accordance with X-ray fluorescence and nuclear resonance measurements as changes of the density of states in the valence band of the alloys.},
  language  = {en}
}
@article{ZastrowRieder1976,
  author    = {Zastrow, Udo and Rieder, G.},
  title     = {Eine Variante des Kraftgr{\"o}ßenverfahrens f{\"u}r ebene Rahmentragwerke},
  series = {Wissenschaftliche Zeitschrift / Hochschule f{\"u}r Architektur und Bauwesen},
  volume    = {23},
  journal   = {Wissenschaftliche Zeitschrift / Hochschule f{\"u}r Architektur und Bauwesen},
  number    = {3},
  publisher = {HAB},
  address   = {Weimar},
  isbn      = {0509-9773},
  pages     = {304 -- 306},
  year      = {1976},
  language  = {de}
}
@article{Alt1976,
  author    = {Alt, Helmut},
  title     = {Spannungs-Blindleistungs-Regelung mit gesteuerten Netzkennlinien},
  series = {Elektrotechnische Zeitschrift : Ausgabe A, Zeitschrift f{\"u}r elektrische Energietechnik : ETZ},
  volume    = {97},
  journal   = {Elektrotechnische Zeitschrift : Ausgabe A, Zeitschrift f{\"u}r elektrische Energietechnik : ETZ},
  number    = {7},
  publisher = {VDE-Verlag},
  address   = {Wuppertal},
  issn      = {0302-265x},
  pages     = {441 -- 446},
  year      = {1976},
  language  = {de}
}
@article{LepersJaegerPuetter1977,
  author    = {Lepers, Heinrich and J{\"a}ger, G. and P{\"u}tter, L.},
  title     = {Anwendung eines Prozessmodells zur Regelung der Produktqualit{\"a}t bei der Zementklinker-Herstellung / Jaeger, G. ; Lepers, H. Puetter, L. [u.a.]},
  series = {VDI-Berichte (1977)},
  journal   = {VDI-Berichte (1977)},
  pages     = {87 -- 93},
  year      = {1977},
  language  = {de}
}
@article{Hagemann1978,
  author    = {Hagemann, Hans-J{\"u}rgen},
  title     = {Loss mechanisms and domain stabilization in doped BaTiO₃},
  series = {Journal of Physics C: Solid State Physics},
  volume    = {11},
  journal   = {Journal of Physics C: Solid State Physics},
  number    = {15},
  publisher = {n.a.},
  address   = {London},
  isbn      = {0022-3719},
  doi       = {10.1088/0022-3719/11/15/031},
  pages     = {3333 -- 3344},
  year      = {1978},
  language  = {en}
}
@article{Hagemann1978,
  author    = {Hagemann, Hans-J{\"u}rgen},
  title     = {Electrical properties of acceptor-doped BaTiO3 ceramic. Hagemann, H. J.},
  series = {Berichte der Deutschen Keramischen Gesellschaft. 55 (1978)},
  journal   = {Berichte der Deutschen Keramischen Gesellschaft. 55 (1978)},
  isbn      = {0365-9542},
  pages     = {353 -- 355},
  year      = {1978},
  language  = {en}
}
@article{Hagemann1978,
  author    = {Hagemann, Hans-J{\"u}rgen},
  title     = {Reduction of hysteresis losses of ferroelectric BaTiO3. Hagemann, H. J.},
  series = {Ferroelectrics. 22 (1978)},
  journal   = {Ferroelectrics. 22 (1978)},
  isbn      = {0015-0193},
  pages     = {743 -- 743},
  year      = {1978},
  language  = {en}
}
@article{Zastrow1978,
  author    = {Zastrow, Udo},
  title     = {Zur Berechnung anisotroper Scheiben durch singul{\"a}re Integralgleichungen},
  series = {ZAMM - Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik.},
  volume    = {58},
  journal   = {ZAMM - Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik.},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Berlin},
  isbn      = {1521-4001},
  doi       = {10.1002/zamm.19780580605},
  pages     = {T132 -- T133},
  year      = {1978},
  language  = {de}
}
@article{Alt1978,
  author    = {Alt, Helmut},
  title     = {Tabellenfreie Berechnung der Einkommensteuer mit Hilfe des programmierbaren Taschenrechners},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {77},
  journal   = {Elektrizit{\"a}tswirtschaft},
  publisher = {VWEW-Energieverlag},
  address   = {Frankfurt/Main},
  issn      = {0013-5496},
  pages     = {486 -- 489},
  year      = {1978},
  language  = {de}
}
@article{Alt1978,
  author    = {Alt, Helmut},
  title     = {Wirtschaftlichkeit von Investitionen},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {77},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {3},
  publisher = {VWEW-Energieverlag},
  address   = {Frankfurt/Main},
  issn      = {0013-5496},
  pages     = {73 -- 76},
  year      = {1978},
  language  = {de}
}
@article{Alt1978,
  author    = {Alt, Helmut},
  title     = {Intervallschalter mit getrennt einstellbarer Pulszeit und Pulszahl},
  series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  volume    = {27},
  journal   = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  number    = {H. 14},
  publisher = {WEKA Fachmedien},
  address   = {Haar},
  issn      = {0013-5658},
  pages     = {76},
  year      = {1978},
  language  = {de}
}
@article{HagemannIhrig1979,
  author    = {Hagemann, Hans-J{\"u}rgen and Ihrig, H.},
  title     = {Valence change and phase stability of 3d-doped BaTiO3 annealed in oxygen and hydrogen. Hagemann, H. J.; Ihrig, H.},
  series = {Physical Review B.. 20 (1979), H. 9},
  journal   = {Physical Review B.. 20 (1979), H. 9},
  isbn      = {1095-3795},
  pages     = {3871 -- 3878},
  year      = {1979},
  language  = {en}
}
@article{ZastrowPanagiotopoulos1979,
  author    = {Zastrow, Udo and Panagiotopoulos, P. D.},
  title     = {An integral "Equation" approach to the unilateral contact problem},
  series = {ZAMM - Zeitschrift f{\"u}r angewandte Mathematik und Mechanik. 59 (1979), H. 8},
  journal   = {ZAMM - Zeitschrift f{\"u}r angewandte Mathematik und Mechanik. 59 (1979), H. 8},
  isbn      = {1521-4001},
  pages     = {392 -- 393},
  year      = {1979},
  language  = {en}
}
@article{Zastrow1979,
  author    = {Zastrow, Udo},
  title     = {Anisotrope Scheiben mit gemischten Randbedingungen},
  series = {ZAMM - Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik. 59 (1979), H. 5},
  journal   = {ZAMM - Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik. 59 (1979), H. 5},
  isbn      = {1521-4001},
  pages     = {T218 -- T219},
  year      = {1979},
  language  = {de}
}
@article{Alt1979,
  author    = {Alt, Helmut},
  title     = {Isolierte Freileitungen, ein Betriebsmittel f{\"u}r schwierige Trassenf{\"u}hrung},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Jg. 78},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {H. 10},
  issn      = {0013-5496},
  pages     = {250 -- 256},
  year      = {1979},
  language  = {de}
}
@article{SammFaissnerFrenzeletal.1980,
  author    = {Samm, Doris and Faissner, H. and Frenzel, E. and Heinrigs, W.},
  title     = {Limit on axion decay into an electron pair / H. Faissner, E. Frenzel, W. Heinrigs, A. Preussger, D. Samm und U. Samm},
  series = {Physics Letters B. Vol. 96 (1980), H. Issues 1-2},
  journal   = {Physics Letters B. Vol. 96 (1980), H. Issues 1-2},
  pages     = {201 -- 205},
  year      = {1980},
  language  = {en}
}
@article{SammFaissnerFrenzeletal.1980,
  author    = {Samm, Doris and Faissner, H. and Frenzel, E. and Heinrigs, W.},
  title     = {Observation of the two-photon decay of a light penetrating particle / H. Faissner, E. Frenzel, W. Heinrigs, A. Preussger, D. Samm und U. Samm},
  series = {Physics Letters B. Vol. 103 (1980), H. Issues 3},
  journal   = {Physics Letters B. Vol. 103 (1980), H. Issues 3},
  pages     = {234 -- 240},
  year      = {1980},
  language  = {en}
}
@article{HagemannIhrig1980,
  author    = {Hagemann, Hans-J{\"u}rgen and Ihrig, H.},
  title     = {BaTiO3 dotiert mit 3d-Ionen: Valenzen, Leerstellen und ihre Auswirkungen. Hagemann, H. J.; Ihrig, H.},
  series = {Philips - Unsere Forschung in Deutschland / Hrsg.: Philips Forschungslaboratorium GmbH Aachen und Hamburg. 3 (1980)},
  journal   = {Philips - Unsere Forschung in Deutschland / Hrsg.: Philips Forschungslaboratorium GmbH Aachen und Hamburg. 3 (1980)},
  pages     = {249 -- 252},
  year      = {1980},
  language  = {de}
}
@article{HagemannHeroGonser1980,
  author    = {Hagemann, Hans-J{\"u}rgen and Hero, A. and Gonser, U.},
  title     = {The valence change of Fe in BaTiO3 studied by M{\"o}ßbauer effect and gravimetry. Hagemann, H. J.; Hero, A.; Gonser, U.},
  series = {Physica Status Solidi (A) - Applied Research. 61 (1980)},
  journal   = {Physica Status Solidi (A) - Applied Research. 61 (1980)},
  isbn      = {0031-8965},
  pages     = {63 -- 72},
  year      = {1980},
  language  = {en}
}
@article{ZastrowRieder1980,
  author    = {Zastrow, Udo and Rieder, G.},
  title     = {Bracketing eigenvalues of an oscillating elastic body by integral equations},
  series = {Bracketing of eigenfrequencies of continous structures : Euromech Colloquium, no. 112, M{\´a}traf{\"u}red (Hungary), 21 - 23 February, 1979 / ed. by {\`A}. Bosznay},
  journal   = {Bracketing of eigenfrequencies of continous structures : Euromech Colloquium, no. 112, M{\´a}traf{\"u}red (Hungary), 21 - 23 February, 1979 / ed. by {\`A}. Bosznay},
  publisher = {Akad. Kiad{\´o}},
  address   = {Budapest},
  isbn      = {963-05-2625-5},
  pages     = {421 -- 434},
  year      = {1980},
  language  = {en}
}
@article{Zastrow1980,
  author    = {Zastrow, Udo},
  title     = {Die Airysche Spannungsfunktion f{\"u}r die unendliche anisotrope, orthotrope und isotrope Scheibe},
  series = {ZAMM - Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik. 60 (1980), H. 6},
  journal   = {ZAMM - Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik. 60 (1980), H. 6},
  isbn      = {1521-4001},
  pages     = {T159 -- T160},
  year      = {1980},
  language  = {de}
}
@article{ZastrowRieder1980,
  author    = {Zastrow, Udo and Rieder, G.},
  title     = {Zur Eingrenzung der Eigenfrequenzen eines station{\"a}r schwingenden elastischen K{\"o}rpers mittels Integralgleichungen},
  series = {ZAMM - Zeitschrift f{\"u}r angewandte Mathematik und Mechanik. 60 (1980), H. 6},
  journal   = {ZAMM - Zeitschrift f{\"u}r angewandte Mathematik und Mechanik. 60 (1980), H. 6},
  isbn      = {1521-4001},
  pages     = {T149 -- T150},
  year      = {1980},
  language  = {de}
}
@article{Alt1980,
  author    = {Alt, Helmut},
  title     = {Kurzschlußstromberechnung},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Jg. 79},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {H. 10},
  issn      = {0013-5496},
  pages     = {379 -- 382},
  year      = {1980},
  language  = {de}
}
@article{HagemannHennings1981,
  author    = {Hagemann, Hans-J{\"u}rgen and Hennings, D.},
  title     = {Reversible Weight change of acceptor-doped BaTiO3. Hagemann, H. J.; Hennings, D.},
  series = {Journal of the American Ceramic Society. 64 (1981)},
  journal   = {Journal of the American Ceramic Society. 64 (1981)},
  isbn      = {0002-7820},
  pages     = {590 -- 594},
  year      = {1981},
  language  = {en}
}
@article{Zastrow1981,
  author    = {Zastrow, Udo},
  title     = {Die Einflußfunktionen der Einzelkraft und der Stufenversetzung in der anisotropen Vollebene},
  series = {Archive of Applied Mechanics - Ingenieur Archiv. 51 (1981), H. 1-2},
  journal   = {Archive of Applied Mechanics - Ingenieur Archiv. 51 (1981), H. 1-2},
  isbn      = {1432-0681},
  pages     = {89 -- 99},
  year      = {1981},
  language  = {de}
}
@article{Alt1981,
  author    = {Alt, Helmut},
  title     = {Wirtschaftlichkeitsberechnung von Investitionen mit dem programmierbaren Taschenrechner},
  series = {3 R international : RRR ; Rohre, Rohrleitungsbau, Rohrleitungstransport},
  volume    = {Jg. 20},
  journal   = {3 R international : RRR ; Rohre, Rohrleitungsbau, Rohrleitungstransport},
  number    = {H. 10},
  issn      = {0340-3386},
  pages     = {561 -- 565},
  year      = {1981},
  language  = {de}
}
@article{Zastrow1982,
  author    = {Zastrow, Udo},
  title     = {Solution of plane anisotropic elastostatical boundary value problems by singular integral equations},
  series = {Acta Mechanica. 44 (1982), H. 1-2},
  journal   = {Acta Mechanica. 44 (1982), H. 1-2},
  isbn      = {1619-6937},
  pages     = {59 -- 71},
  year      = {1982},
  language  = {en}
}
@article{Alt1982,
  author    = {Alt, Helmut},
  title     = {Statische oder dynamische Wirtschaftlichkeitsberechnung bei Investitionen zur Energieeinsparung},
  series = {Elektrow{\"a}rme international Edition B: Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschrift f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt},
  volume    = {Jg. 40},
  journal   = {Elektrow{\"a}rme international Edition B: Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschrift f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt},
  number    = {H. 3/4},
  issn      = {0340-3521},
  pages     = {166 -- 172},
  year      = {1982},
  language  = {de}
}
@article{SammFaissnerHeinrigsetal.1983,
  author    = {Samm, Doris and Faissner, H. and Heinrigs, W. and Latsch, C.},
  title     = {Richtungsselektive Z{\"a}hleranordnung zur Messung der Masse Axion-{\"a}hnlicher Teilchen / Faissner, H. ; Heinrigs, W. ; Latsch, C.; Preussger, A.; Samm, D.},
  series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 18 (1983), H. 6},
  journal   = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 18 (1983), H. 6},
  pages     = {1213 -- 1213},
  year      = {1983},
  language  = {de}
}
@article{Alt1983,
  author    = {Alt, Helmut},
  title     = {Einsatz programmierbarer Rechner im Sondervertragskundenbereich der Gasversorgung},
  series = {Das Gas- und Wasserfach : Ausgabe Gas, Erdgas : GWF},
  volume    = {Bd. 124},
  journal   = {Das Gas- und Wasserfach : Ausgabe Gas, Erdgas : GWF},
  number    = {H. 9},
  issn      = {0016-4909},
  pages     = {468 -- 471},
  year      = {1983},
  language  = {de}
}
@article{Alt1983,
  author    = {Alt, Helmut},
  title     = {Auswertung von Belastungskennlinien},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Bd. 82},
  journal   = {Elektrizit{\"a}tswirtschaft},
  issn      = {0013-5496},
  pages     = {208 -- 210},
  year      = {1983},
  language  = {de}
}
@article{HagemannHenningsWernicke1984,
  author    = {Hagemann, Hans-J{\"u}rgen and Hennings, D. and Wernicke, R.},
  title     = {Ceramic multilayer capacitors. Hagemann, H. J.; Hennings, D.; Wernicke, R.},
  series = {Philips' technical review / Philips' Gloeilampenfabrieken. Philips' Gloeilampenfabrieken <Eindhoven>. 41 (1984)},
  journal   = {Philips' technical review / Philips' Gloeilampenfabrieken. Philips' Gloeilampenfabrieken <Eindhoven>. 41 (1984)},
  isbn      = {0031-7926},
  pages     = {89 -- 98},
  year      = {1984},
  language  = {en}
}
@article{HagemannHenningsWernicke1984,
  author    = {Hagemann, Hans-J{\"u}rgen and Hennings, D. and Wernicke, R.},
  title     = {Keramische Vielschichtkondensatoren. Hagemann, H. J.; Hennings, D.; Wernicke, R.},
  series = {Sprechsaal : internat. ceramics \& glass magazine. 117 (1984)},
  journal   = {Sprechsaal : internat. ceramics \& glass magazine. 117 (1984)},
  isbn      = {0341-0439},
  pages     = {924 -- 931},
  year      = {1984},
  language  = {de}
}
@article{HagemannStumpeWagneretal.1985,
  author    = {Hagemann, Hans-J{\"u}rgen and Stumpe, R. and Wagner, D. and B{\"a}uerle, D.},
  title     = {The influence of contact effects on the dielectric behavior of diffuse phase transitions. Stumpe, R.; Wagner, D.; B{\"a}uerle, D.; Hagemann, H. J.},
  series = {Ferroelectrics : the international journal devoted to the theoretical, experimental, and applied aspects of ferroelectrics and related materials / Letters section. 4 (1985)},
  journal   = {Ferroelectrics : the international journal devoted to the theoretical, experimental, and applied aspects of ferroelectrics and related materials / Letters section. 4 (1985)},
  isbn      = {0731-5171},
  pages     = {143 -- 147},
  year      = {1985},
  language  = {en}
}
@article{HagemannGeittnerWarnieretal.1985,
  author    = {Hagemann, Hans-J{\"u}rgen and Geittner, P. and Warnier, J. and Weling, F.},
  title     = {Reduction of geometric taper losses in the PCVD process. Geittner, P.; Hagemann, H. J.; Warnier, J.; Weling, F.; Wilson, H.},
  series = {Electronics letters : an intern. publication / The Institution of Electrical Engineers. 21 (1985), H. 13},
  journal   = {Electronics letters : an intern. publication / The Institution of Electrical Engineers. 21 (1985), H. 13},
  isbn      = {0013-5194},
  pages     = {870 -- 871},
  year      = {1985},
  language  = {en}
}
@article{Zastrow1985,
  author    = {Zastrow, Udo},
  title     = {On the formulation of the fundamental solutions for orthotropic plane elasticity},
  series = {Acta Mechanica. 57 (1985), H. 3-4},
  journal   = {Acta Mechanica. 57 (1985), H. 3-4},
  isbn      = {1619-6937},
  pages     = {113 -- 122},
  year      = {1985},
  language  = {en}
}
@article{Zastrow1985,
  author    = {Zastrow, Udo},
  title     = {On the complete system of fundamental solutions for anisotropic slices and slabs: A comparison by use of the slab analogy},
  series = {Journal of Elasticity. 15 (1985), H. 3},
  journal   = {Journal of Elasticity. 15 (1985), H. 3},
  isbn      = {1573-2681},
  pages     = {293 -- 318},
  year      = {1985},
  language  = {en}
}
@article{Zastrow1985,
  author    = {Zastrow, Udo},
  title     = {Basic geometrical singularities in plane-elasticity and plate-bending problems},
  series = {International Journal of Solids and Structures. 21 (1985), H. 10},
  journal   = {International Journal of Solids and Structures. 21 (1985), H. 10},
  isbn      = {0020-7683},
  pages     = {1047 -- 1067},
  year      = {1985},
  language  = {en}
}
@article{Zastrow1985,
  author    = {Zastrow, Udo},
  title     = {Numerical plane stress analysis by integral equations based on the singularity method},
  series = {SM archives . 10 (1985)},
  journal   = {SM archives . 10 (1985)},
  isbn      = {0376-7426},
  pages     = {113 -- 128},
  year      = {1985},
  language  = {en}
}
@article{Zastrow1985,
  author    = {Zastrow, Udo},
  title     = {Zum System der Einflußfunktionen f{\"u}r die unendliche anisotrope Scheibe mit statischen und geometrischen Singularit{\"a}ten},
  series = {Archive of Applied Mechanics - Ingenieur Archiv. 55 (1985), H. 2},
  journal   = {Archive of Applied Mechanics - Ingenieur Archiv. 55 (1985), H. 2},
  isbn      = {1432-0681},
  pages     = {124 -- 133},
  year      = {1985},
  language  = {de}
}
@article{Alt1985,
  author    = {Alt, Helmut},
  title     = {Vorteilsausgleich durch Versorgungsunternehmen f{\"u}r Ersatzleistungen Dritter},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Jg. 104},
  journal   = {Elektrizit{\"a}tswirtschaft},
  issn      = {0013-5496},
  pages     = {440 -- 443},
  year      = {1985},
  language  = {de}
}
@article{Alt1985,
  author    = {Alt, Helmut},
  title     = {Multiplikativ oder additiv? Diskussionsbeitrag zu Preisanpassungsklauseln in der Gaswirtschaft},
  series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt},
  volume    = {Jg. 35},
  journal   = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt},
  issn      = {0013-743X},
  pages     = {609 -- 611},
  year      = {1985},
  language  = {de}
}
@article{Siepmann1986,
  author    = {Siepmann, Thomas},
  title     = {Abschlußbericht zum Vorhaben Nr. 22/IV},
  series = {Forschungsvereinigung Antriebstechnik: Forschungsreport},
  journal   = {Forschungsvereinigung Antriebstechnik: Forschungsreport},
  publisher = {FVA},
  address   = {Frankfurt/M.},
  year      = {1986},
  language  = {de}
}
@article{HagemannGeittnerWarnieretal.1986,
  author    = {Hagemann, Hans-J{\"u}rgen and Geittner, P. and Warnier, J. and Wilson, H.},
  title     = {PCVD at high deposition rates. Geittner, P.; Hagemann, H. J.; Warnier, J.; Wilson, H.},
  series = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 4 (1986), H. 7},
  journal   = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 4 (1986), H. 7},
  isbn      = {0733-8724},
  pages     = {818 -- 822},
  year      = {1986},
  language  = {en}
}
@article{Alt1986,
  author    = {Alt, Helmut},
  title     = {Steuersenkungsgesetz-Auswirkungen und Berechnung},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Jg. 85},
  journal   = {Elektrizit{\"a}tswirtschaft},
  issn      = {0013-5496},
  pages     = {238 -- 242},
  year      = {1986},
  language  = {de}
}
@article{Alt1986,
  author    = {Alt, Helmut},
  title     = {Dialoggesteuerte harmonische Analyse mit dem HP 41},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Bd. 85},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {H. 4},
  issn      = {0013-5496},
  pages     = {139 -- 142},
  year      = {1986},
  language  = {de}
}
@article{Alt1986,
  author    = {Alt, Helmut},
  title     = {Dialoggesteuerte harmonische Analyse mit dem HP 41},
  series = {Elektrow{\"a}rme international Edition B : Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschr. f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt},
  volume    = {Jg. 44},
  journal   = {Elektrow{\"a}rme international Edition B : Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschr. f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt},
  number    = {H. 6},
  issn      = {0340-3521},
  pages     = {283 -- 287},
  year      = {1986},
  language  = {de}
}
@article{Alt1986,
  author    = {Alt, Helmut},
  title     = {Dialoggesteuerte Spannungs- und Belastungsberechnung im Netz eines Elektrizit{\"a}tsversorgungsunternehmens},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Bd. 85},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {H. 23},
  issn      = {0013-5496},
  pages     = {906 -- 910},
  year      = {1986},
  language  = {de}
}
@article{KrauseFruth1987,
  author    = {Krause, Gregor and Fruth, Bernhard},
  title     = {Dielectric Properties of Polyolefins Stressed by High Electrical Fields. Fruth, B. ; Krause, G.},
  year      = {1987},
  language  = {en}
}
@article{HagemannOBryan1987,
  author    = {Hagemann, Hans-J{\"u}rgen and O´Bryan, H. M.},
  title     = {Grain boundary and surface segragation of Ba-Ti-O-Phases in rutile. O´Bryan, H. M.; Hagemann, H. J.},
  series = {Journal of the American Ceramic Society. 70 (1987)},
  journal   = {Journal of the American Ceramic Society. 70 (1987)},
  isbn      = {0002-7820},
  pages     = {274 -- 278},
  year      = {1987},
  language  = {en}
}
@article{Wosnitza1987,
  author    = {Wosnitza, Franz},
  title     = {Ein Testbarkeitsanalysemaß f{\"u}r den testfreundlichen Entwurf integrierter Schaltkreise auf Register-Transfer-Niveau},
  series = {ITG-Fachberichte. 98 (1987)},
  journal   = {ITG-Fachberichte. 98 (1987)},
  pages     = {291 -- 295},
  year      = {1987},
  language  = {de}
}
@article{Alt1987,
  author    = {Alt, Helmut},
  title     = {Effektivzinsberechnung bei industriellen oder gewerblichen Tilgungsdarlehen},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Bd. 86},
  journal   = {Elektrizit{\"a}tswirtschaft},
  issn      = {0013-5496},
  pages     = {592 -- 595},
  year      = {1987},
  language  = {de}
}
@article{Alt1987,
  author    = {Alt, Helmut},
  title     = {Steuersenkungs-Erweiterungsgesetz 1988 zur Gesamtentlastung der Einkommensteuer},
  series = {Betriebs-Berater : BB ; Zeitschrift f{\"u}r Recht und Wirtschaft},
  volume    = {Vol. 42},
  journal   = {Betriebs-Berater : BB ; Zeitschrift f{\"u}r Recht und Wirtschaft},
  number    = {H. 32},
  issn      = {0340-7918},
  pages     = {2207 -- 2208},
  year      = {1987},
  language  = {de}
}
@article{KrauseFruth1988,
  author    = {Krause, Gregor and Fruth, B.},
  title     = {Dielectric Properties of Polyolefins Stressed by High Electrical Fields / Fruth, B. ; Krause, G.},
  series = {Plenary lectures and contributions presented at the International Symposium on Polymer Materials : held in San Sebastian (Donostia), Spain, 31 August - 4 September, 1987 / symposium ed. G. M. Guzm{\´a}n ; A. Santamaria},
  journal   = {Plenary lectures and contributions presented at the International Symposium on Polymer Materials : held in San Sebastian (Donostia), Spain, 31 August - 4 September, 1987 / symposium ed. G. M. Guzm{\´a}n ; A. Santamaria},
  publisher = {Huethig \& Wepf},
  address   = {Basel},
  isbn      = {3-85739-220-7},
  pages     = {XIV, 629 S.},
  year      = {1988},
  language  = {en}
}
@article{KrauseSchuppeSaureetal.1988,
  author    = {Krause, Gregor and Schuppe, W.D. and Saure, M. and Andress, H.},
  title     = {Sensitive Analytical and Physical Methods for Diagnosis of Variations in Polyolefin Plaques and Cable Insulations / W.D. Schuppe, M. Saure, H. Andress, K. M{\"o}ller, D. Meurer, G. Krause},
  series = {Proceedings of the 32nd session : 28th August - 3rd September.},
  journal   = {Proceedings of the 32nd session : 28th August - 3rd September.},
  year      = {1988},
  language  = {en}
}
@article{KrauseMeurerKlee1988,
  author    = {Krause, Gregor and Meurer, D. and Klee, D.},
  title     = {Space Charge Formation Related to the Morphology of Polymers},
  series = {ISE 6 : 6th International symposium on electrets : Papers},
  journal   = {ISE 6 : 6th International symposium on electrets : Papers},
  publisher = {IEEE},
  address   = {Piscataway, NY},
  pages     = {XIX, 688 S. : graph. Darst.},
  year      = {1988},
  language  = {en}
}
@article{KrauseFruthKrauseetal.1988,
  author    = {Krause, Gregor and Fruth, Bernhard and Krause, Gregor and Meurer, D.},
  title     = {Einfluß der Verarbeitungsverfahren und verarbeitungsbedingter Werkstoffzus{\"a}tze auf die dielektrischen Eigenschaften von Kunststoffen / B. Fruth, G. Krause, D. Meurer, K. M{\"o}ller},
  address   = {Aachen},
  year      = {1988},
  language  = {de}
}
@article{SiepmannPfeifferTeichmann1988,
  author    = {Siepmann, Thomas and Pfeiffer, J. and Teichmann, W.},
  title     = {Expertensystem zur spanenden Bearbeitung},
  series = {Technische Mitteilungen Krupp (1988)},
  journal   = {Technische Mitteilungen Krupp (1988)},
  address   = {Essen},
  year      = {1988},
  language  = {de}
}
@article{SammFaissnerGoettlicheretal.1988,
  author    = {Samm, Doris and Faissner, H. and G{\"o}ttlicher, P. and Matela, H.},
  title     = {Suche nach skalaren und pseudoskalaren Teilchen am Kernreaktor Merlin der KFA Juelich / Faissner, H.; Goettlicher, P.; Matela, H.; Samm, D.},
  series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 23 (1988), H. 5},
  journal   = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 23 (1988), H. 5},
  year      = {1988},
  language  = {de}
}
@article{Muehl1988,
  author    = {M{\"u}hl, Thomas},
  title     = {Berechnung von Lichtintensit{\"a}tsverteilungen in streuenden Medien},
  pages     = {129 S. : Ill., graph. Darst.},
  year      = {1988},
  language  = {de}
}
@article{HagemannGeittnerLydtinetal.1988,
  author    = {Hagemann, Hans-J{\"u}rgen and Geittner, P. and Lydtin, H. and Warnier, J.},
  title     = {Hybrid technology for large SM-fiber preforms. Geittner, P.; Hagemann, H. J.; Lydtin, H.; Warnier, J.},
  series = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 6 (1988), H. 10},
  journal   = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 6 (1988), H. 10},
  isbn      = {0733-8724},
  pages     = {1451 -- 1454},
  year      = {1988},
  language  = {en}
}
@article{Mayer1988,
  author    = {Mayer, Claudia},
  title     = {Von »Unterbrechungen« und »Engf{\"u}hrungen«. Lyrik und Prosa in Butt und R{\"a}ttin},
  series = {G{\"u}nter Grass},
  journal   = {G{\"u}nter Grass},
  publisher = {Ed. Text + Kritik},
  address   = {M{\"u}nchen},
  isbn      = {3-88377-285-2},
  pages     = {84 -- 92},
  year      = {1988},
  language  = {de}
}
@article{ZastrowHackl1988,
  author    = {Zastrow, Udo and Hackl, Klaus},
  title     = {On the existence, uniqueness and completeness of displacements and stress functions in linear elasticity / Hackl, Klaus ; Zastrow, Udo},
  series = {Journal of Elasticity. 19 (1988), H. 1},
  journal   = {Journal of Elasticity. 19 (1988), H. 1},
  isbn      = {1573-2681},
  pages     = {3 -- 23},
  year      = {1988},
  language  = {en}
}
@article{KrauseSchuppeSaureetal.1989,
  author    = {Krause, Gregor and Schuppe, W.D. and Saure, M. and Andress, H.},
  title     = {Sensitive Analytische und Physikalische Verfahren zum Nachweis von Ver{\"a}nderungen in Platten und Kabelisolierungen aus Polyolefinen / W.D. Schuppe, M. Saure, H. Andress, K. M{\"o}ller, D. Meurer, G. Krause},
  series = {AEG Technische Mitteilungen (1989)},
  journal   = {AEG Technische Mitteilungen (1989)},
  year      = {1989},
  language  = {de}
}
@article{KrauseGoettlichMoelleretal.1989,
  author    = {Krause, Gregor and G{\"o}ttlich, S. and M{\"o}ller, K. and Meurer, D.},
  title     = {Space Charge Phenomena in Partially Crystalline Polymers: On-Line Measurement of Charge Carrier Motion under High AC-Field Strength / G. Krause, S. G{\"o}ttlich, K. M{\"o}ller, D. Meurer},
  series = {Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics : Trondheim, Norway ... 1989},
  journal   = {Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics : Trondheim, Norway ... 1989},
  publisher = {IEEE},
  address   = {Piscataway, N.J.},
  pages     = {IX, 607 S.},
  year      = {1989},
  language  = {en}
}
@article{KrauseMoellerMeurer1989,
  author    = {Krause, Gregor and M{\"o}ller, K. and Meurer, D.},
  title     = {Dielectric phenomena in semicrystalline polymers},
  series = {IEEE Transaction on Electrical Insulation. Vol. 24 (1989), H. No. 2},
  journal   = {IEEE Transaction on Electrical Insulation. Vol. 24 (1989), H. No. 2},
  pages     = {215 -- 222},
  year      = {1989},
  language  = {en}
}
@article{KrauseMeurerKlee1989,
  author    = {Krause, Gregor and Meurer, D. and Klee, D.},
  title     = {Space charge formation related to the morphology of polymers},
  series = {IEEE Transaction on Electrical Insulation. Vol. 24 (1989), H. No. 3},
  journal   = {IEEE Transaction on Electrical Insulation. Vol. 24 (1989), H. No. 3},
  pages     = {215 -- 222},
  year      = {1989},
  language  = {en}
}
@article{SammFaissnerHeinrigsetal.1989,
  author    = {Samm, Doris and Faissner, H. and Heinrigs, W. and Preussger, A.},
  title     = {Search for the two-photon decay of a light penetrating particle from a 590 MeV proton beam dump / Faissner, H.; Heinrigs, W.; Preussger, A.; Reitz, J.; Samm, D. [u.a.]},
  series = {Zeitschrift f{\"u}r Physik, C Particles and Fields. 44 (1989), H. 4},
  journal   = {Zeitschrift f{\"u}r Physik, C Particles and Fields. 44 (1989), H. 4},
  pages     = {557 -- 566},
  year      = {1989},
  language  = {en}
}
@article{HagemannGeittnerLeers1989,
  author    = {Hagemann, Hans-J{\"u}rgen and Geittner, P. and Leers, D.},
  title     = {Intrinsic scattering and absorption losses of Ge- and F-doped optical fibres prepared by PCVD. Geittner, P.; Hagemann, H. J. ; Leers, D.},
  series = {Electronics letters : an intern. publication / The Institution of Electrical Engineers. 25 (1989), H. 7},
  journal   = {Electronics letters : an intern. publication / The Institution of Electrical Engineers. 25 (1989), H. 7},
  isbn      = {0013-5194},
  pages     = {436 -- 437},
  year      = {1989},
  language  = {en}
}
@article{HagemannGeittnerSchnittkeretal.1989,
  author    = {Hagemann, Hans-J{\"u}rgen and Geittner, P. and Schnittker, W. and Warnier, J.},
  title     = {Abscheidegeschwindigkeiten und Prozeßausbeuten im PCVD-Verfahren. Geittner, P.; Hagemann, H. J.; Schnittker, W.; Warnier, J.; Weling, F.; Wilson, H.},
  series = {Philips - Unsere Forschung in Deutschland / Hrsg.: Philips Forschungslaboratorium GmbH Aachen und Hamburg. 4 (1989)},
  journal   = {Philips - Unsere Forschung in Deutschland / Hrsg.: Philips Forschungslaboratorium GmbH Aachen und Hamburg. 4 (1989)},
  pages     = {140 -- 143},
  year      = {1989},
  language  = {de}
}
@article{Hagemann1989,
  author    = {Hagemann, Hans-J{\"u}rgen},
  title     = {St{\"o}rstellengleichgewichte in eisendotierten Titanaten. Hagemann, H. J.},
  series = {Philips - Unsere Forschung in Deutschland / Hrsg.: Philips Forschungslaboratorium GmbH Aachen und Hamburg. 4 (1989)},
  journal   = {Philips - Unsere Forschung in Deutschland / Hrsg.: Philips Forschungslaboratorium GmbH Aachen und Hamburg. 4 (1989)},
  pages     = {170 -- 172},
  year      = {1989},
  language  = {de}
}
@article{Mayer1989,
  author    = {Mayer, Claudia},
  title     = {Elf Tage Schweigen. Bericht zu Buddhismus und Meditation in Thailand},
  series = {Frankfurter Allgemeine Zeitung (1989)},
  journal   = {Frankfurter Allgemeine Zeitung (1989)},
  pages     = {R5 -- R6},
  year      = {1989},
  language  = {de}
}
@article{Alt1989,
  author    = {Alt, Helmut},
  title     = {Steuerreformgesetz 1990},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Bd. 88},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {H. 1/2},
  issn      = {0013-5496},
  pages     = {78 -- 83},
  year      = {1989},
  language  = {de}
}
@article{Alt1989,
  author    = {Alt, Helmut},
  title     = {Steuerreformgesetz 1990},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Jg. 88},
  journal   = {Elektrizit{\"a}tswirtschaft},
  number    = {H. 2},
  issn      = {0947-0581 (E-Journal); 0340-7918 (Print)},
  pages     = {120 -- 121},
  year      = {1989},
  language  = {de}
}
@article{Alt1989,
  author    = {Alt, Helmut},
  title     = {Die Bedeutung des Effektivzinses in der Finanzwirtschaft},
  series = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater},
  journal   = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater},
  issn      = {0340-7926},
  pages     = {31 -- 32},
  year      = {1989},
  language  = {de}
}
@article{Alt1989,
  author    = {Alt, Helmut},
  title     = {Einfluß der Kontof{\"u}hrungsmodelle auf den Effektivzins und die Restschuld bei Annuit{\"a}tendarlehen},
  series = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater},
  journal   = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater},
  issn      = {0340-7926},
  pages     = {32 -- 37},
  year      = {1989},
  language  = {de}
}
@article{KrauseNeubertPietsch1990,
  author    = {Krause, Gregor and Neubert, R. and Pietsch, R.},
  title     = {Investigations of Electrical Aging in Polymers under High AC-Field Strength},
  series = {1990 annual report : October 28 - October 31, 1990 / sponsored by the IEEE Dielectrics and Electrical Insulation Society},
  journal   = {1990 annual report : October 28 - October 31, 1990 / sponsored by the IEEE Dielectrics and Electrical Insulation Society},
  publisher = {IEEE Service Center},
  address   = {Piscataway, N.J},
  pages     = {716 S : Ill., graph. Darst.},
  year      = {1990},
  language  = {en}
}
@article{SammBosetti1990,
  author    = {Samm, Doris and Bosetti, P.-C.},
  title     = {Testmessungen an einem grossflaechigen (Durchmesser 35 cm) Photomultiplier Test measurements of a large-area (diameter 35 cm) photomultiplier / Bosetti, P.-C.; ... Samm, D. [u.a.]},
  series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1},
  journal   = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1},
  pages     = {33 -- 33},
  year      = {1990},
  language  = {en}
}
@article{SammBosetti1990,
  author    = {Samm, Doris and Bosetti, P.-C.},
  title     = {DUMAND und die Suche nach extraterrestrischen Neutrinos / DUMAND and the search for extraterrestrial neutrinos / Bosetti, P.-C.; ... Samm, D. [u.a.]},
  series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1},
  journal   = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1},
  pages     = {88 -- 88},
  year      = {1990},
  language  = {en}
}
@article{HagemannUngelenkWiechert1990,
  author    = {Hagemann, Hans-J{\"u}rgen and Ungelenk, J. and Wiechert, D. U.},
  title     = {Optical time domain reflectometry (OTDR) of diameter modulations in single-mode fibers. Hagemann, H. J.; Ungelenk, J.; Wiechert, D. U.},
  series = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 8 (1990), H. 11},
  journal   = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 8 (1990), H. 11},
  isbn      = {0733-8724},
  pages     = {1641 -- 1645},
  year      = {1990},
  language  = {en}
}
@article{HagemannGeittner1990,
  author    = {Hagemann, Hans-J{\"u}rgen and Geittner, P.},
  title     = {PCVD hybrid technology for single mode fibres. Hagemann, H. J.; Geittner, P.},
  series = {Proceedings : papers presented at: the 8th Annual European Fibre Optic Communications and Local Area Networks Exposition},
  journal   = {Proceedings : papers presented at: the 8th Annual European Fibre Optic Communications and Local Area Networks Exposition},
  pages     = {67 -- 72},
  year      = {1990},
  language  = {en}
}
@article{Mayer1990,
  author    = {Mayer, Claudia},
  title     = {Das Ich ist eine Illusion},
  series = {Deutsches Allgemeines Sonntagsblatt (1990)},
  journal   = {Deutsches Allgemeines Sonntagsblatt (1990)},
  pages     = {16 -- 16},
  year      = {1990},
  language  = {de}
}
@article{Mayer1990,
  author    = {Mayer, Claudia},
  title     = {Bali. Bl{\"u}teninsel im Indischen Ozean. Reisebericht},
  series = {Fliegende Bl{\"a}tter / Condor (1990)},
  journal   = {Fliegende Bl{\"a}tter / Condor (1990)},
  pages     = {61 -- 64},
  year      = {1990},
  language  = {de}
}
@article{Alt1990,
  author    = {Alt, Helmut},
  title     = {Energietarifstruktur in Ostdeutschland},
  series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt},
  volume    = {Bd. 40},
  journal   = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt},
  number    = {H. 11},
  issn      = {0013-743X},
  pages     = {782 -- 788},
  year      = {1990},
  language  = {de}
}
@article{HeuermannSchiek1991,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Robuster Algorithmus zur Streuparameterbestimmung f{\"u}r systemfehlerkorrigierte Netzwerkanalysatoren},
  series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 35. 1991 (1991)},
  journal   = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 35. 1991 (1991)},
  pages     = {555 -- 556},
  year      = {1991},
  language  = {de}
}
@article{Krause1991,
  author    = {Krause, Gregor},
  title     = {High Field Phenomena of Polymeric Insulation Investigated at PE Needle-Plane Specimen},
  series = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30, 1991 / Technische Universit{\"a}t Dresden},
  journal   = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30, 1991 / Technische Universit{\"a}t Dresden},
  publisher = {TU Dresden},
  address   = {Dresden},
  year      = {1991},
  language  = {en}
}