@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{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}
}
@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}
}
@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{Meliss1989,
  author    = {Meliß, Michael},
  title     = {Photovoltaik bietet gr{\"o}ßtes Potential. NRW-Forschungs- und Entwicklungsarbeiten bereits heute anerkennenswert},
  series = {Energie : das Magazin f{\"u}r Wirtschaft, Forschung, Technik, Umwelt. Bd. 41 (1989), H. 12},
  journal   = {Energie : das Magazin f{\"u}r Wirtschaft, Forschung, Technik, Umwelt. Bd. 41 (1989), H. 12},
  issn      = {0013-7359},
  pages     = {32 -- 41},
  year      = {1989},
  language  = {de}
}
@article{Meliss1989,
  author    = {Meliß, Michael},
  title     = {Regenerative Energiequellen. Technischer Stand und Wirtschaftlichkeit},
  series = {Energiewirtschaftliche Tagesfragen. Jg. 39 (1989), H. 1/2},
  journal   = {Energiewirtschaftliche Tagesfragen. Jg. 39 (1989), H. 1/2},
  issn      = {0013-743X ; 0720-6240},
  pages     = {18 -- 25},
  year      = {1989},
  language  = {de}
}
@inproceedings{AnikFrohberg1989,
  author    = {Anik, Sabri and Frohberg, Martin G.},
  title     = {Thermodynamic behaviour of oxygen in molten metallic alloys},
  series = {Thermochemistry of alloys : recent developments of experimental methods ; [proceedings of the NATO Advanced Study Institute on Thermochemistry of Alloys, Recent Developments of Experimental Methods, Kiel, F.R.G., August 17 - 27, 1987]. - (NATO ASI series : Series C ; 286)},
  booktitle = {Thermochemistry of alloys : recent developments of experimental methods ; [proceedings of the NATO Advanced Study Institute on Thermochemistry of Alloys, Recent Developments of Experimental Methods, Kiel, F.R.G., August 17 - 27, 1987]. - (NATO ASI series : Series C ; 286)},
  editor    = {Brodowsky, Horst},
  publisher = {Springer},
  address   = {Dordrecht [u.a.]},
  isbn      = {0-7923-0434-9},
  pages     = {419 -- 428},
  year      = {1989},
  language  = {en}
}
@article{Meliss1989,
  author    = {Meliß, Michael},
  title     = {Regenerative Energiequellen},
  series = {Brennstoff, W{\"a}rme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 41 (1989), H. 4},
  journal   = {Brennstoff, W{\"a}rme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 41 (1989), H. 4},
  issn      = {0006-9612 (Print) ; 1436-4883 (E-Journal)},
  pages     = {146 -- 151},
  year      = {1989},
  language  = {de}
}
@inproceedings{Benner1989,
  author    = {Benner, Joachim},
  title     = {Schwingungstechnische Dimensionierung von Maschinens{\"a}tzen mit Stromrichtermotoren},
  series = {Antriebstechnisches Kolloquium '89 : Maschinen- und Anlagen{\"u}berwachung ; Elemente der Antriebstechnik im System ; neue Konzepte in der Antriebstechnik. - (Reihe IME-Leitfaden)},
  booktitle = {Antriebstechnisches Kolloquium '89 : Maschinen- und Anlagen{\"u}berwachung ; Elemente der Antriebstechnik im System ; neue Konzepte in der Antriebstechnik. - (Reihe IME-Leitfaden)},
  editor    = {Peeken, Heinz},
  publisher = {Verl. T{\"U}V Rheinland},
  address   = {K{\"o}ln},
  issn      = {3-88585-639-5},
  pages     = {309 -- 333},
  year      = {1989},
  language  = {de}
}
@article{Benner1989,
  author    = {Benner, Joachim},
  title     = {Schwingungsbelastung von drehzahlgeregelten Antrieben mit Stromrichtermotoren},
  series = {Antriebstechnik : Konstruktion, Entwicklung und Anwendung von Antrieben und Steuerungen ; Organ der Forschungsvereinigung Antriebstechnik e.V.},
  volume    = {28},
  journal   = {Antriebstechnik : Konstruktion, Entwicklung und Anwendung von Antrieben und Steuerungen ; Organ der Forschungsvereinigung Antriebstechnik e.V.},
  number    = {12},
  publisher = {Vereinigte Fachverl.},
  address   = {Mainz},
  issn      = {0341-2652},
  pages     = {49 -- 54},
  year      = {1989},
  language  = {de}
}
@article{PeekenBennerPlatt1989,
  author    = {Peeken, Heinz and Benner, Joachim and Platt, Werner},
  title     = {Ausfallkriterien elastomerbest{\"u}ckter Wellenkupplungen},
  series = {Antriebstechnik : Konstruktion, Entwicklung und Anwendung von Antrieben und Steuerungen ; Organ der Forschungsvereinigung Antriebstechnik e.V.},
  volume    = {28},
  journal   = {Antriebstechnik : Konstruktion, Entwicklung und Anwendung von Antrieben und Steuerungen ; Organ der Forschungsvereinigung Antriebstechnik e.V.},
  number    = {11},
  publisher = {Vereinigte Fachverl.},
  address   = {Mainz},
  issn      = {0341-2652},
  pages     = {85 -- 88},
  year      = {1989},
  language  = {de}
}
@article{SaffeLodewiksHaasetal.1989,
  author    = {Saffe, P. and Lodewiks, J. and Haas, H.-J. and Feigel, H.-J. and Ulrich, H. and Mauer, J. and Ortwig, H. and Dahmann, Peter and Rotth{\"a}user, S. and Tao, J. and Ohlischl{\"a}ger, O. and Scholz, D. and Bergmann, M. and Anders, P.},
  title     = {Neues von ASB Antreiben - Steuern - Bewegen},
  series = {{\"O}lhydraulik und Pneumatik. Vol. 33 (1989), H. 7},
  journal   = {{\"O}lhydraulik und Pneumatik. Vol. 33 (1989), H. 7},
  issn      = {0341-2660},
  pages     = {550 -- 572},
  year      = {1989},
  language  = {de}
}
@inproceedings{GerlingVogelsang1989,
  author    = {Gerling, Ulrich and Vogelsang, D.},
  title     = {Temperaturfeldberechnungen mit ASKA unter Ber{\"u}cksichtigung des Phasen{\"u}bergangs fest/fl{\"u}ssig},
  series = {FEM '89 Congress : International FEM-Congress, Baden-Baden, Federal Republic of Germany, 20./21. November 1989},
  booktitle = {FEM '89 Congress : International FEM-Congress, Baden-Baden, Federal Republic of Germany, 20./21. November 1989},
  publisher = {IKOSS},
  address   = {Stuttgart},
  pages     = {295 -- 314},
  year      = {1989},
  language  = {de}
}
@article{LueckGerlingPredel1989,
  author    = {L{\"u}ck, Reinhard and Gerling, Ulrich and Predel, Bruno},
  title     = {An entropy paradox of the association model},
  series = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 80, H. 4},
  journal   = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 80, H. 4},
  issn      = {0044-3093 ; 0179-4841},
  pages     = {270 -- 275},
  year      = {1989},
  language  = {en}
}
@misc{HofbauerHaertelLoesingetal.1989,
  author    = {Hofbauer, Peter and H{\"a}rtel, G{\"u}nter and L{\"o}sing, Karl-Heinrich and Dorner, Robert and Simonis, Rainer and Schulte, Erasmus},
  title     = {Brennstoffeinspritzsystem f{\"u}r Brennkraftmaschinen : Offenlegungsschrift DE 3833215 A1 ; Offenlegungstag: 28.12.89},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {12 S.},
  year      = {1989},
  abstract  = {Es wird ein Brennstoffeinspritzsystem f{\"u}r Brennkraftmaschinen vorgeschlagen, bei dem ein definiertes Teil eines fest vorgegebenen Brennstoffvolumens durch die Druckerh{\"o}hung innerhalb einer brennstoffeinschließenden Kammer eine definierte Brennstoffmenge {\"u}ber jeweils ein R{\"u}ckschlagventil abgespritzt wird. Ein elektronisches Steuerger{\"a}t berechnet die Dauer und/oder Intensit{\"a}t und gegebenenfalls die Impulsfolge eines zum Beispiel zur Verdampfung einer bestimmten Brennstoffmenge erforderlichen Laserimpulses. Das System kann f{\"u}r Ein- oder Mehrstelleinspritzung Verwendung finden.},
  subject      = {Brennkraftmaschine},
  language  = {de}
}
@article{Ziemons1989,
  author    = {Ziemons, Karl},
  title     = {An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons and polarised protons},
  series = {Nuclear Physics B},
  volume    = {328},
  journal   = {Nuclear Physics B},
  number    = {1},
  isbn      = {0550-3213},
  pages     = {1 -- 35},
  year      = {1989},
  abstract  = {The spin asymmetry in deep inelastic scattering of longitudinally polarised muons by longitudinally polarised protons has been measured in the range 0.01<×<0.7. The spin dependent structure function g1(x) for the proton has been determined and, combining the data with earlier SLAC measurements, its integral over x found to be 0.126±0.010(stat.)±0.015(syst.), in disagreement with the Ellis-Jaffe sum rule. Assuming the validity of the Biorken sum rule, this result implies a significant negative value for the integral of g1 for the neutron. These integrals lead to the conclusion, in the na{\"i}ve quark parton model, that the total quark spin constitutes a rather small fraction of the spin of the nucleon. Results are also presented on the asymmetries in inclusive hadron production which are consistent with the above picture.},
  language  = {en}
}
@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{LaackCasser1989,
  author    = {Laack, Walter van and Casser, H. R.},
  title     = {Cortisonbedingte Ablederung der H{\"u}ftkopfkappe / Laack, W. van ; Casser, H. R.},
  series = {Neuere Ergebnisse in der Osteologie : Skelettwachstum, Endoprothetik, Glukokortikoide ; [15. - 18. Februar 1989 in G{\"o}ttingen] / H.-G. Willert ; F. H. W. Heuck (Hrsg.)},
  journal   = {Neuere Ergebnisse in der Osteologie : Skelettwachstum, Endoprothetik, Glukokortikoide ; [15. - 18. Februar 1989 in G{\"o}ttingen] / H.-G. Willert ; F. H. W. Heuck (Hrsg.)},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {3-540-51175-X},
  pages     = {566 -- 568},
  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{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}
}
@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}
}
@article{LaackCasser1989,
  author    = {Laack, Walter van and Casser, H.-R.},
  title     = {Arthroskopische Behandlung der Osteochondrosis dissecans an der medialen Femurrolle},
  series = {Arthroskopie. 2 (1989), H. 1},
  journal   = {Arthroskopie. 2 (1989), H. 1},
  isbn      = {0933-7946},
  pages     = {16 -- 18},
  year      = {1989},
  language  = {de}
}
@article{LaackRefisch1989,
  author    = {Laack, Walter van and Refisch, A.},
  title     = {Neuralgic amyotrophy of the lumbar area. Case Report / Refisch, A. ; Laack, W. van},
  series = {Archives of Orthopaedic and Trauma Surgery. 108 (1989), H. 5},
  journal   = {Archives of Orthopaedic and Trauma Surgery. 108 (1989), H. 5},
  isbn      = {0936-8051},
  pages     = {329 -- 332},
  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}
}
@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}
}
@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}
}
@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{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{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{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{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{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{KaemperSchmittWesneretal.1989,
  author    = {K{\"a}mper, Klaus-Peter and Schmitt, W. and Wesner, D. A. and G{\"u}ntherodt, G.},
  title     = {Thickness dependence of the spin- and angle-resolved photoemission of ultrathin, epitaxial Ni(111)/W(110) layers},
  series = {Applied Physics A: Materials Science and Processing. 49 (1989), H. 6},
  journal   = {Applied Physics A: Materials Science and Processing. 49 (1989), H. 6},
  isbn      = {1432-0630},
  pages     = {573 -- 578},
  year      = {1989},
  language  = {en}
}
@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{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}
}
@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{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{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}
}
@incollection{MertensBecker1989,
  author    = {Mertens, Josef and Becker, K.},
  title     = {Numerical solution of flow equations : an aircraft designer's view},
  series = {Nonlinear hyperbolic equations - theory, computation methods, and applications : proceedings of the 2nd International Conference on Nonlinear Hyperbolic Problems, Aachen, FRG, March 14 to 18, 1988. - (Notes on Numerical Fluid Mechanics ; 24)},
  booktitle = {Nonlinear hyperbolic equations - theory, computation methods, and applications : proceedings of the 2nd International Conference on Nonlinear Hyperbolic Problems, Aachen, FRG, March 14 to 18, 1988. - (Notes on Numerical Fluid Mechanics ; 24)},
  editor    = {Ballmann, Josef},
  publisher = {Vieweg},
  address   = {Braunschweig},
  isbn      = {3-528-08098-1},
  doi       = {10.1007/978-3-322-87869-4_41},
  pages     = {403 -- 412},
  year      = {1989},
  abstract  = {Today the most accurate and cost effective industrial codes used in aircraft design are based on the full potential equation coupled with boundary layer equations. However, these are not capable to solve complicated three-dimensional problems of vortical flows and shocks. On the other hand Euler and Navier-Stokes codes are too expensive and not accurate enough for design purposes, especially in regard of drag and interference prediction. The reasons for these deficiencies are investigated and a way to overcome them by future developments is demonstrated.},
  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}
}
@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}
}