@misc{SponagelGrafGross1989,
  author    = {Sponagel, Stefan and Graf, G{\"u}nter and Groß, Heinz},
  title     = {Method for manufacturing a sealing ring : United States Patent 4,861,536 ; date of patent: Aug. 12, 1989 / assignee: Firma Carl Freudenberg. Inventors: Gunter Graf ; Heinz Gross ; Stefan Sponagel},
  publisher = {[United States Patent and Trademark Office]},
  address   = {[Alexandria, VA]},
  pages     = {5 S. : Ill.},
  year      = {1989},
  language  = {en}
}
@misc{SponagelGrafGross1989,
  author    = {Sponagel, Stefan and Graf, G{\"u}nter and Groß, Heinz},
  title     = {Method for the manufacture of a sealing ring with a sealing lip having hydrodynamically acting return elements : United States Patent 4,850,097 ; date of patent: Jul. 25, 1989 / assignee: Firma Carl Freudenberg. Inventors: Gunter Graf ; Heinz Gross ; Stefan Sponagel},
  publisher = {[United States Patent and Trademark Office]},
  address   = {[Alexandria, VA]},
  pages     = {4 S. : Ill.},
  year      = {1989},
  language  = {en}
}
@article{PrielmeierSpeedyVardagetal.1989,
  author    = {Prielmeier, Franz and Speedy, R. J. and Vardag, T. and Lang, E. W.},
  title     = {Diffusion in simple fluids / R. J. Speedy; F. X. Prielmeier; T. Vardag; E. W. Lang; H.-D. L{\"u}demann},
  series = {Molecular Physics. 66 (1989), H. 3},
  journal   = {Molecular Physics. 66 (1989), H. 3},
  isbn      = {0026-8976},
  pages     = {577 -- 590},
  year      = {1989},
  language  = {en}
}
@article{LauthSolomunHirschwaldetal.1989,
  author    = {Lauth, Jakob and Solomun, T. and Hirschwald, W. and Christmann, K.},
  title     = {The interaction of carbon monoxide with a ruthenium(1010) surface},
  series = {Surface Science. 210 (1989), H. 1-2},
  journal   = {Surface Science. 210 (1989), H. 1-2},
  isbn      = {0039-6028},
  pages     = {201 -- 224},
  year      = {1989},
  language  = {en}
}
@article{LauthSolomunHirschwaldetal.1989,
  author    = {Lauth, Jakob and Solomun, T. and Hirschwald, W. and Christmann, K.},
  title     = {The interaction of carbon monoxide with a ruthenium(1010) surface},
  series = {Surface Science Letters. 210 (1989), H. 1-2},
  journal   = {Surface Science Letters. 210 (1989), H. 1-2},
  isbn      = {0167-2584},
  pages     = {A74 -- A75},
  year      = {1989},
  language  = {en}
}
@article{Lassonczyk1989,
  author    = {Lassonczyk, Beate},
  title     = {Fossile Bodenbildung in Nord-Somalia},
  series = {Mitteilungen der Deutschen Bodenkundlichen Gesellschaft. 59 (1989), H. 2},
  journal   = {Mitteilungen der Deutschen Bodenkundlichen Gesellschaft. 59 (1989), H. 2},
  isbn      = {0343-107x},
  pages     = {927 -- 930},
  year      = {1989},
  language  = {de}
}
@article{WeberSchmittJahnetal.1989,
  author    = {Weber, Hans-Joachim and Schmitt, W. and Jahn, D. and Euringer, H.},
  title     = {Ein Versuch zur theoretischen Temperaturermittlung im Schneidbereich bei Bohrungen in kortikalem Knochen - An Experiment to Calculate the Theoretical Temperature at the Drill - Cortical Bone Interface / Schmitt, W. ; Weber, H. J. ; Jahn, D. ; Euringer, H.},
  series = {Biomedizinische Technik/Biomedical Engineering. 34 (1989), H. 3},
  journal   = {Biomedizinische Technik/Biomedical Engineering. 34 (1989), H. 3},
  isbn      = {0013-5585},
  pages     = {53 -- 56},
  year      = {1989},
  language  = {de}
}
@book{Goettsche1989,
  author    = {G{\"o}ttsche, Joachim},
  title     = {Eine Maximum-Likelihood-Methode zur Charakterisierung fraktaler Mengen und chaotischer dynamische Prozesse/ vorgelegt von Joachim G{\"o}ttsche},
  publisher = {Inst. f{\"u}r Theoretische Physik und Sternwarte der Christian-Albrechts-Univ.},
  address   = {Kiel},
  pages     = {138 Bl : Ill., graph. Darst.},
  year      = {1989},
  language  = {de}
}
@article{Bruessermann1989,
  author    = {Br{\"u}ssermann, Klaus},
  title     = {H3 and C14 air monitoring according to KTA 1503.1},
  series = {2. Karlsruhe international conference on analytical chemistry in nuclear technology, Karlsruhe (Germany), 5-9 Jun 1989},
  journal   = {2. Karlsruhe international conference on analytical chemistry in nuclear technology, Karlsruhe (Germany), 5-9 Jun 1989},
  pages     = {223},
  year      = {1989},
  language  = {en}
}
@article{HelsperMoelter1989,
  author    = {Helsper, Christoph and M{\"o}lter, L.},
  title     = {Erzeugung von Pr{\"u}faerosolen f{\"u}r die Kalibrierung von optischen Partikelmeßverfahren nach VDI 3491},
  series = {Technisches Messen. 56 (1989)},
  journal   = {Technisches Messen. 56 (1989)},
  isbn      = {0171-8096},
  pages     = {229 -- 234},
  year      = {1989},
  language  = {en}
}
@article{HelsperMoelterKaminski1989,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Kaminski, S.},
  title     = {Fast and Automated Testing of Different Air Filter Media / M{\"o}lter, W. ; Helsper, C. ; Kaminski, S.},
  series = {1. Europ{\"a}isches Symposium Partikelabscheidung aus Gasen : [PARTEC, N{\"u}rnberg, West Germany, 19. - 21. April 1989 ; preprints] = 1. European Symposium Separation of Particles from Gases / [Organisation und Durchf{\"u}hrung: N{\"u}rnbergMesse]. Hrsg. von: Friedrich L{\"o}ffler},
  journal   = {1. Europ{\"a}isches Symposium Partikelabscheidung aus Gasen : [PARTEC, N{\"u}rnberg, West Germany, 19. - 21. April 1989 ; preprints] = 1. European Symposium Separation of Particles from Gases / [Organisation und Durchf{\"u}hrung: N{\"u}rnbergMesse]. Hrsg. von: Friedrich L{\"o}ffler},
  publisher = {N{\"u}rnbergMesse},
  address   = {N{\"u}rnberg},
  pages     = {441 -- 457},
  year      = {1989},
  language  = {en}
}
@article{HelsperMoelterKaminski1989,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Kaminski, S.},
  title     = {Fast and Automated Testing of Different Air Filter Media / M{\"o}lter, W. ; Helsper, C. ; Kaminski, S.},
  series = {Proceedings of the Filtech Conference, Karlsruhe 1989, Vol. 1},
  journal   = {Proceedings of the Filtech Conference, Karlsruhe 1989, Vol. 1},
  publisher = {Filtration Society},
  address   = {Oadby},
  pages     = {125 -- 136},
  year      = {1989},
  language  = {en}
}
@book{Hodapp1989,
  author    = {Hodapp, Josef},
  title     = {Die direkte Selbst-Regelung einer Asynchronmaschine mit einem Signalprozessor},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-147508-4},
  pages     = {II, 148 S. : graph. Darst.},
  year      = {1989},
  language  = {de}
}
@article{HoylerCollinsEid1989,
  author    = {Hoyler, Friedrich and Collins, S. P. and Eid, S. A.},
  title     = {A search for mixed-symmetry states in the mass A approximately 50 region / S. P. Collins ; S. A. Eid ... F. Hoyler},
  series = {Journal of Physics G. 15 (1989), H. 3},
  journal   = {Journal of Physics G. 15 (1989), H. 3},
  isbn      = {0954-3899},
  pages     = {321 -- 332},
  year      = {1989},
  language  = {en}
}
@article{FoersterRizziLueth1989,
  author    = {F{\"o}rster, Arnold and Rizzi, Angela and L{\"u}th, H.},
  title     = {Epitaxial growth and characterization of Si/NiSi2/Si(111) heterostructures / Angela Rizzi ; A. F{\"o}rster ; H. L{\"u}th},
  series = {Surface Science. 211 - 212 (1989)},
  journal   = {Surface Science. 211 - 212 (1989)},
  isbn      = {0039-6028},
  pages     = {620 -- 629},
  year      = {1989},
  language  = {en}
}
@article{FoersterLayetLueth1989,
  author    = {F{\"o}rster, Arnold and Layet, J. M. and L{\"u}th, H.},
  title     = {Evaluation of dopant profiles and diffusion constants by means of electron energy loss spectroscopy},
  series = {Applied Surface Science. 41 - 42 (1989)},
  journal   = {Applied Surface Science. 41 - 42 (1989)},
  isbn      = {0169-4332},
  pages     = {306 -- 311},
  year      = {1989},
  language  = {en}
}
@article{FoersterLueth1989,
  author    = {F{\"o}rster, Arnold and L{\"u}th, H.},
  title     = {Surface reactions of trimethylgallium and trimethylarsenic on silicon surfaces},
  series = {Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures. 7 (1989), H. 4},
  journal   = {Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures. 7 (1989), H. 4},
  isbn      = {1071-1023},
  pages     = {720 -- 724},
  year      = {1989},
  language  = {en}
}
@book{Scherer1989,
  author    = {Scherer, Ulrich W.},
  title     = {Untersuchungen zur Synthese und chemischen Charakterisierung sehr schwerer Elemente / Ulrich W. Scherer},
  publisher = {Gesellschaft f{\"u}r Schwerionenforschung mbH},
  address   = {Darmstadt},
  pages     = {123 S.},
  year      = {1989},
  language  = {de}
}
@article{SchererHessbergerGaeggeleretal.1989,
  author    = {Scherer, Ulrich W. and Heßberger, F. P. and G{\"a}ggeler, H. W. and Armbruster, P.},
  title     = {The New Nuclide 225U / F.P. Heßberger, H. G{\"a}ggeler, P. Armbruster, W. Br{\"u}chle, H. Folger, S. Hofmann, D. Jost, J.V. Kratz, M.E. Leino, G. M{\"u}nzenberg, V. Ninov, M. Sch{\"a}del, U.W. Scherer, K. S{\"u}mmerer, A. T{\"u}rler, D. Ackerman},
  series = {Zeitschrift f{\"u}r Physik A Hadrons and Nuclei. 333 (1989), H. 1},
  journal   = {Zeitschrift f{\"u}r Physik A Hadrons and Nuclei. 333 (1989), H. 1},
  isbn      = {0939-7922},
  pages     = {111 -- 112},
  year      = {1989},
  language  = {en}
}
@article{SchererGaeggelerJostetal.1989,
  author    = {Scherer, Ulrich W. and G{\"a}ggeler, H. W. and Jost, D. T. and T{\"u}rler, A.},
  title     = {Cold Fusion Reactions with 48Ca / H.W. G{\"a}ggeler, D.T. Jost, A. T{\"u}rler, P. Armbruster, W. Br{\"u}chle, H. Folger, F.P. Heßberger, S. Hofmann, G. M{\"u}nzenberg, V. Ninov, W. Reisdorf, M. Sch{\"a}del, K. S{\"u}mmerer, J.V. Kratz, U. Scherer, M.E. Leino},
  series = {Nuclear Physics A . 502 (1989), H. 1},
  journal   = {Nuclear Physics A . 502 (1989), H. 1},
  isbn      = {0375-9474},
  pages     = {561 -- 570},
  year      = {1989},
  language  = {en}
}
@article{SchererKratzZimmermannetal.1989,
  author    = {Scherer, Ulrich W. and Kratz, J. V. and Zimmermann, H. P. and Sch{\"a}del, M.},
  title     = {Chemical Properties of Element 105 in Aqueous Solutions: Halide Complex Formation and Anion Exchange into Triisooctylamine / J.V. Kratz, H.P. Zimmermann, U.W. Scherer, M. Sch{\"a}del, W. Br{\"u}chle, K.E. Gregorich, C.M. Gannett, H.L. Hall, R.A. Henderson, D.M. L},
  series = {Radiochimica Acta. 48 (1989)},
  journal   = {Radiochimica Acta. 48 (1989)},
  isbn      = {0033-8230},
  pages     = {121},
  year      = {1989},
  language  = {en}
}
@article{SchererSchaedelBruechleetal.1989,
  author    = {Scherer, Ulrich W. and Sch{\"a}del, M. and Br{\"u}chle, W. and J{\"a}ger, E.},
  title     = {ARCA II - A New Apparatus for Fast Repetitive HPLC-Separations / M. Sch{\"a}del, W. Br{\"u}chle, E. J{\"a}ger, E. Schimpf, J.V. Kratz, U.W. Scherer, H.P. Zimmermann},
  series = {Radiochimica Acta. 48 (1989)},
  journal   = {Radiochimica Acta. 48 (1989)},
  isbn      = {0033-8230},
  pages     = {171},
  year      = {1989},
  language  = {en}
}
@misc{MangMaier1989,
  author    = {Mang, Thomas and Maier, Josef},
  title     = {Verfahren zur Herstellung einer haptenisierten Polysaccharidmatrix},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  year      = {1989},
  language  = {de}
}
@book{Mang1989,
  author    = {Mang, Thomas},
  title     = {Verfahren zur Herstellung einer haptenisierten Polysaccharidmatrix},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {M{\"u}nchen},
  year      = {1989},
  language  = {de}
}
@article{BreitbachPenkallaSchubert1989,
  author    = {Breitbach, Gerd and Penkalla, H.-J. and Schubert, F.},
  title     = {Diskussion eines neuen ORNL-Stoffgesetzes fuer Inconel 617 / H.-J. Penkalla ; G. Breitbach ; F. Schubert},
  series = {Sicherheit und Verf{\"u}gbarkeit in der Anlagentechnik mit dem Schwerpunkt Langzeitintegrit{\"a}t der druckf{\"u}hrenden Bauteile von Kernkraftwerken : [5. - 6. Oktober 1989] / Staatliche Materialpr{\"u}fungsanstalt Universit{\"a}t Stuttgart. - Bd. 2 : Zeitstandvehalten, Kriechvorg{\"a}nge, Rohrleitungsverhalten, Bruchmechanik : (Vortr{\"a}ge 23 - 45)},
  journal   = {Sicherheit und Verf{\"u}gbarkeit in der Anlagentechnik mit dem Schwerpunkt Langzeitintegrit{\"a}t der druckf{\"u}hrenden Bauteile von Kernkraftwerken : [5. - 6. Oktober 1989] / Staatliche Materialpr{\"u}fungsanstalt Universit{\"a}t Stuttgart. - Bd. 2 : Zeitstandvehalten, Kriechvorg{\"a}nge, Rohrleitungsverhalten, Bruchmechanik : (Vortr{\"a}ge 23 - 45)},
  publisher = {MPA},
  address   = {Stuttgart},
  pages     = {28.1 -- 28.20},
  year      = {1989},
  language  = {de}
}
@article{BreitbachAltesSzimmat1989,
  author    = {Breitbach, Gerd and Altes, J. and Szimmat, J.},
  title     = {Anwendung der Finite-Element-Methode bei der Berechnung des W{\"a}rmetransports durch Strahlung / J. Altes ; G. Breitbach ; J. Szimmat},
  series = {International FEM-Congress : Baden-Baden, Federal Republic of Germany, 17./18. November 1986},
  journal   = {International FEM-Congress : Baden-Baden, Federal Republic of Germany, 17./18. November 1986},
  publisher = {IKO Software Service GmbH},
  address   = {Stuttgart},
  pages     = {127 -- 148},
  year      = {1989},
  language  = {de}
}
@book{Breitbach1989,
  author    = {Breitbach, Gerd},
  title     = {Proceedings of the Workshop on Structural Design Criteria for HTR : J{\"u}lich, 31. January - 1. February 1989 / ed.: G. Breitbach ... - Als Ms. gedr.},
  publisher = {Zentralbibliothek d. Kernforschungsanlage},
  address   = {J{\"u}lich},
  pages     = {VII, 548 S. : Ill., graph. Darst.},
  year      = {1989},
  language  = {en}
}
@article{HillenRuppSchiebeletal.1989,
  author    = {Hillen, Walter and Rupp, S. and Schiebel, U. and Zaengel, Thomas T.},
  title     = {Imaging performance of a selenium-based detector for high-resolution radiography},
  series = {Medical Imaging III: Image Formation},
  journal   = {Medical Imaging III: Image Formation},
  isbn      = {0-8194-0125-0},
  pages     = {296},
  year      = {1989},
  language  = {en}
}
@article{KotterLintzRiekertetal.1989,
  author    = {Kotter, Michael and Lintz, Hans-G{\"u}nther and Riekert, Lothar and Trimm, D. L.},
  title     = {Structure and selectivity changes in vanadia-titania catalysts used to promote the reduction of nitric oxide with ammonia},
  series = {Applied catalysis. 52 (1989), H. 1},
  journal   = {Applied catalysis. 52 (1989), H. 1},
  isbn      = {0166-9834},
  pages     = {225 -- 235},
  year      = {1989},
  language  = {en}
}
@article{KotterHammonRiekert1989,
  author    = {Kotter, Michael and Hammon, Ulrich and Riekert, Lothar},
  title     = {Gewinnung niedriger Olefine aus Methanol bei partiellem Umsatz mit R{\"u}ckf{\"u}hrung / U. Hammon ; M. Kotter ; L. Riekert},
  series = {Chemie - Ingenieur - Technik. 61 (1989), H. 2},
  journal   = {Chemie - Ingenieur - Technik. 61 (1989), H. 2},
  isbn      = {0009-286X},
  pages     = {151 -- 152},
  year      = {1989},
  language  = {de}
}
@article{KotterRiekertTurek1989,
  author    = {Kotter, Michael and Riekert, Lothar and Turek, Thomas},
  title     = {Entfernung von Ammoniak aus Abw{\"a}ssern durch Strippung und Sorption an Zeolithen : [Synopse 1724]},
  series = {Chemie - Ingenieur - Technik. 61 (1989), H. 1},
  journal   = {Chemie - Ingenieur - Technik. 61 (1989), H. 1},
  isbn      = {0009-286X},
  pages     = {74 -- 75},
  year      = {1989},
  language  = {de}
}
@article{KotterBeckerRiekert1989,
  author    = {Kotter, Michael and Becker, Dieter and Riekert, Lothar},
  title     = {Zur Selektivit{\"a}t der partiellen Oxidation von Propen an Schalenkatalysatoren / Dieter Becker ; Michael Kotter ; Lothar Riekert},
  series = {Chemie - Ingenieur - Technik. 61 (1989), H. 9},
  journal   = {Chemie - Ingenieur - Technik. 61 (1989), H. 9},
  isbn      = {0009-286X},
  pages     = {748 -- 749},
  year      = {1989},
  language  = {de}
}
@article{DiktaKurtzStute1989,
  author    = {Dikta, Gerhard and Kurtz, B. and Stute, W.},
  title     = {Sequential Fixed-Width Confidence Bands for Distribution Functions Under Random Censoring},
  series = {Metrika. 36 (1989)},
  journal   = {Metrika. 36 (1989)},
  isbn      = {0026-1335},
  pages     = {167 -- 176},
  year      = {1989},
  language  = {en}
}
@article{BaumannTillmannAletsee1989,
  author    = {Baumann, Marcus and Tillmann, U. and Aletsee, L.},
  title     = {Distribution of Carbon Among Photosynthetic End Products in the Bloom-Forming Arctic Diatom Thalassiosira antarctica COMBER / Tillmann, U. ; Baumann, M.E.M. ; Aletsee, L.},
  series = {Polar Biology. 10 (1989), H. 3},
  journal   = {Polar Biology. 10 (1989), H. 3},
  isbn      = {0722-4060},
  pages     = {231 -- 238},
  year      = {1989},
  language  = {en}
}
@article{LaackRefisch1989,
  author    = {Laack, Walter van and Refisch, A.},
  title     = {Die neuralgische Amyotrophie des Lumbalbereiches / Refisch, A. ; Laack, W. van},
  series = {Orthop{\"a}dische Praxis. 7 (1989)},
  journal   = {Orthop{\"a}dische Praxis. 7 (1989)},
  isbn      = {0030-588x},
  pages     = {437},
  year      = {1989},
  language  = {de}
}
@book{Fassbender1989,
  author    = {Faßbender, Heinz},
  title     = {Implementierung der Call-by-Need Auswertungsstrategie f{\"u}r Macro Tree-to-String Transducer auf Nested-Stack Maschinen mit geschachtelten Ausgabeb{\"a}ndern},
  address   = {Aachen},
  year      = {1989},
  language  = {de}
}
@article{Hanrath1989,
  author    = {Hanrath, Wilhelm},
  title     = {Character tables of some factor groups of space groups},
  series = {Perfect groups / Derek F. Holt and W. Plesken},
  journal   = {Perfect groups / Derek F. Holt and W. Plesken},
  publisher = {Clarendon Press},
  address   = {Oxford},
  isbn      = {0-19-853559-7},
  pages     = {357 -- 359},
  year      = {1989},
  language  = {en}
}
@misc{Wahle1989,
  author    = {Wahle, Michael},
  title     = {Gestaltung von plattenf{\"o}rmigen Hohlprofilen oder wellblechartigen Profilen : Offenlegungsschrift / Europ{\"a}ische Patentschrift},
  publisher = {Deutsches Patent- und Markenamt / Europ{\"a}isches Patentamt},
  address   = {M{\"u}nchen / Den Hague},
  pages     = {8 S. : graph. Darst.},
  year      = {1989},
  language  = {de}
}
@article{KalbeHoeckerBerndt1989,
  author    = {Kalbe, Jochen and H{\"o}cker, Hartwig and Berndt, Heinz},
  title     = {Design of enzyme reactors as chromatographic columns for racemic resolution of amino acid esters},
  series = {Chromatographia},
  volume    = {28},
  journal   = {Chromatographia},
  number    = {3-4},
  isbn      = {0009-5893},
  doi       = {10.1007/BF02319646},
  pages     = {193 -- 196},
  year      = {1989},
  language  = {en}
}
@article{KuropkaMuellerHoeckeretal.1989,
  author    = {Kuropka, Rolf and M{\"u}ller, Bettina and H{\"o}cker, Hartwig and Berndt, Heinz},
  title     = {Chiral stationary phases via hydrosilylation reaction of N-acryloylamino acids : I. Stationary phase with one chiral centre for high-performance liquid chromatography and development of a new derivatization pattern for amino acid enantiomers},
  series = {Journal of chromatography A},
  journal   = {Journal of chromatography A},
  number    = {481},
  isbn      = {0021-9673},
  pages     = {380 -- 386},
  year      = {1989},
  language  = {en}
}
@inproceedings{BerndtKalbeKuropkaetal.1989,
  author    = {Berndt, Heinz and Kalbe, Jochen and Kuropka, Rolf and Meyer-Stork, L. Sebastian and Sauter, S. L. and H{\"o}cker, Hartwig},
  title     = {Eindeutige Charakterisierung von Tierhaaren und Tierhaar-Mischungen durch DNA-Analytik},
  series = {Beitr{\"a}ge zur 15. Gemeinsamen Tagung der Aachener Textilforschungsinstitute und des "Wollfadens", zugleich 32. Arbeitstagung des Deutschen Wollforschungsinstitutes an der Technischen Hochschule Aachen : am 06. und 07. Oktober 1988. - (Schriftenreihe des Deutschen Wollforschungsinstituts an der Technischen Hochschule Aachen e. V. ; 104)},
  booktitle = {Beitr{\"a}ge zur 15. Gemeinsamen Tagung der Aachener Textilforschungsinstitute und des "Wollfadens", zugleich 32. Arbeitstagung des Deutschen Wollforschungsinstitutes an der Technischen Hochschule Aachen : am 06. und 07. Oktober 1988. - (Schriftenreihe des Deutschen Wollforschungsinstituts an der Technischen Hochschule Aachen e. V. ; 104)},
  publisher = {Dt. Wollforschungsinst.},
  address   = {Aachen},
  issn      = {0930-3723},
  pages     = {29 -- 32},
  year      = {1989},
  language  = {de}
}
@article{Alt1989,
  author    = {Alt, Helmut},
  title     = {Sechsunddreißig Spielarten der Verrechung : die Behandlung von Tilgungs- und Zinszahlungen},
  series = {Frankfurter Zeitung : Blick durch die Wirtschaft : Zeitung f{\"u}r Finanzen, Steuern, Recht und Management},
  journal   = {Frankfurter Zeitung : Blick durch die Wirtschaft : Zeitung f{\"u}r Finanzen, Steuern, Recht und Management},
  pages     = {vom 12.9.1989},
  year      = {1989},
  language  = {de}
}
@article{Alt1989,
  author    = {Alt, Helmut},
  title     = {Zinsberechnung nach dem Sparbuch-Modell},
  series = {Frankfurter Zeitung : Blick durch die Wirtschaft : Zeitung f{\"u}r Finanzen, Steuern, Recht und Management},
  journal   = {Frankfurter Zeitung : Blick durch die Wirtschaft : Zeitung f{\"u}r Finanzen, Steuern, Recht und Management},
  pages     = {vom 22.3.1989},
  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{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}
}
@inproceedings{Baumann1989,
  author    = {Baumann, Marcus},
  title     = {Primary production and phytoplankton growth in the marginal ice zone of the Fram Strait and the interpretation of the field data with autecological experiments (Abstract)},
  series = {Oceanography and biology of Arctic seas : selected papers from the ICES Symposium on Marine Sciences of the Arctic and Subarctic Regions, held in Santander, 28 - 30 September 1987. (Rapports et proc{\`e}s-verbaux des r{\´e}unions / Conseil International pour l'Exploration de la Mer ; 188)},
  booktitle = {Oceanography and biology of Arctic seas : selected papers from the ICES Symposium on Marine Sciences of the Arctic and Subarctic Regions, held in Santander, 28 - 30 September 1987. (Rapports et proc{\`e}s-verbaux des r{\´e}unions / Conseil International pour l'Exploration de la Mer ; 188)},
  editor    = {Hempel, G.},
  publisher = {International Council for the Exploration of the Sea},
  address   = {Copenhagen},
  organization    = {Symposium on Marine Sciences of the Arctic and Subarctic Regions <1987, Santander>},
  pages     = {128},
  year      = {1989},
  language  = {en}
}
@phdthesis{Rosenkranz1989,
  author    = {Rosenkranz, Josef},
  title     = {Die Gleitlagergeh{\"a}usesteifigkeit als modaler Parameter f{\"u}r Rotorsysteme},
  address   = {Aachen},
  pages     = {VI, 145 S. : Ill., zahlr. graph. Darst.},
  year      = {1989},
  language  = {de}
}
@techreport{Rosenkranz1989,
  author    = {Rosenkranz, Josef},
  title     = {Ber{\"u}cksichtigung des Einflusses von Gleitlagergeh{\"a}usen auf das dynamische Verhalten von Rotoren : Abschlußbericht : Forschungsvorhaben Nr. 128 "Gleitlagergeh{\"a}usesteifigkeit" ; Berichtszeitraum 1985-1988. - (Forschungsheft / Forschungsvereinigung Antriebstechnik e.V. ; 303)},
  publisher = {FVA},
  address   = {Frankfurt am Main},
  pages     = {70 S : Ill., graph. Darst},
  year      = {1989},
  language  = {de}
}