@article{HillenEckenbachQuadfliegetal.1991,
  author    = {Hillen, Walter and Eckenbach, W. and Quadflieg, Peter and Zaengel, Thomas T.},
  title     = {Signal-to-noise performance of a CsI fluorescent screen},
  series = {Medical Imaging V: Image physics},
  journal   = {Medical Imaging V: Image physics},
  isbn      = {0-8194-0538-8},
  pages     = {120 -- 131},
  year      = {1991},
  language  = {en}
}
@article{KotterLiRiekert1991,
  author    = {Kotter, Michael and Li, D. X. and Riekert, Lothar},
  title     = {Partielle Oxidation von o-Xylol zu Phthals{\"a}ureanhydrid in einem strukturierten Festbettreaktor},
  series = {Katalyse : katalytische Abgasreinigung, Zeolithe, homogene Katalyse, selektive Reaktionen, Herstellung und Charakterisierung, Ionenleiter, Elektrokatalyse, SLPC-Katalysatoren, Suspensionsphase ; Vortr{\"a}ge von der DECHEMA-Jahrestagung 1990, 31. Mai und 1. Juni 1990 / hrsg. von H. Kral. - (Deutsche Gesellschaft f{\"u}r Chemisches Apparatewesen, Chemische Technik und Biotechnologie: DECHEMA-Monographien ; 122)},
  journal   = {Katalyse : katalytische Abgasreinigung, Zeolithe, homogene Katalyse, selektive Reaktionen, Herstellung und Charakterisierung, Ionenleiter, Elektrokatalyse, SLPC-Katalysatoren, Suspensionsphase ; Vortr{\"a}ge von der DECHEMA-Jahrestagung 1990, 31. Mai und 1. Juni 1990 / hrsg. von H. Kral. - (Deutsche Gesellschaft f{\"u}r Chemisches Apparatewesen, Chemische Technik und Biotechnologie: DECHEMA-Monographien ; 122)},
  publisher = {VCH},
  address   = {Weinheim},
  isbn      = {3-527-10216-7},
  pages     = {93 -- 123},
  year      = {1991},
  language  = {de}
}
@article{GruetersSavvidisLoeeretal.1991,
  author    = {Gr{\"u}ters, Hugo and Savvidis, E. and L{\"o}er, F. and Wiesener, C. H.},
  title     = {Analyse der Beanspruchung des proximalen Femur bei verschiedenen Arten der Belastung mit Hilfe der Finite-Element-Methode / Savvidis, E. ; L{\"o}er, F. ; Gr{\"u}ters, Hugo ; Wiesener, C. H.},
  series = {Zeitschrift f{\"u}r Orthop{\"a}die und ihre Grenzgebiete. 129 (1991), H. 3},
  journal   = {Zeitschrift f{\"u}r Orthop{\"a}die und ihre Grenzgebiete. 129 (1991), H. 3},
  isbn      = {1615-9586},
  pages     = {268 -- 277},
  year      = {1991},
  language  = {de}
}
@book{KotterLintzTurek1991,
  author    = {Kotter, Michael and Lintz, Hans-G{\"u}nther and Turek, Thomas},
  title     = {Entwicklung eines SCR-Katalysators f{\"u}r instation{\"a}re Reaktionsf{\"u}hrung. - (Forschungsbericht KfK-PEF ; 79)},
  publisher = {Kernforschungszentrum},
  address   = {Karlsruhe},
  pages     = {74 S. : Ill., graph. Darst.},
  year      = {1991},
  language  = {de}
}
@article{BaumannGradinger1991,
  author    = {Baumann, Marcus and Gradinger, R.},
  title     = {Distribution of Phytoplankton Communities in Relation to the Large Scale Hydrographical Regime in the Fram Strait 1984 / Gradinger, R. ; Baumann, M.E.M.},
  series = {Marine Biology. 111 (1991), H. 2},
  journal   = {Marine Biology. 111 (1991), H. 2},
  isbn      = {0025-3162},
  pages     = {311 -- 321},
  year      = {1991},
  language  = {en}
}
@article{BaumannHircheKattneretal.1991,
  author    = {Baumann, Marcus and Hirche, H.-J. and Kattner, G. and Gradinger, R.},
  title     = {Plankton distribution and the impact of copepod grazing on primary production in Fram Strait, Greenland Sea / Hirche, H.-J. ; Baumann, M.E.M. ; Kattner, G.; Gradinger, R.},
  series = {Journal of Marine Systems. 2 (1991), H. 3-4},
  journal   = {Journal of Marine Systems. 2 (1991), H. 3-4},
  isbn      = {0924-7963},
  pages     = {477 -- 494},
  year      = {1991},
  language  = {en}
}
@article{Heger1991,
  author    = {Heger, Michael},
  title     = {Lehrveranstaltungskritik als angewandte Hochschuldidaktik},
  series = {Feedback versus Evaluation. Bd. 1 : Argumente f{\"u}r und gegen die Bewertung der universit{\"a}ren Lehre},
  journal   = {Feedback versus Evaluation. Bd. 1 : Argumente f{\"u}r und gegen die Bewertung der universit{\"a}ren Lehre},
  publisher = {{\"O}sterreichischer Studien-Verl.},
  address   = {Innsbruck},
  pages     = {43 -- 69},
  year      = {1991},
  language  = {de}
}
@book{FassbenderGladtzVogler1991,
  author    = {Faßbender, Heinz and Gladtz, Katia and Vogler, Heiko},
  title     = {Compiler based implementation of syntax directed functional programming},
  publisher = {RWTH, Fachgruppe Informatik},
  address   = {Aachen},
  pages     = {37 S.},
  year      = {1991},
  language  = {en}
}
@article{ReisselWick1991,
  author    = {Reißel, Martin and Wick, J.},
  title     = {Eddy Current Computation / Reissel, M. ; Wick, J.},
  series = {Proceedings of the Fifth European Conference on Mathematics in Industry : June 6 - 9, 1990 Lahti / ed. by Matti Heili{\"o}},
  journal   = {Proceedings of the Fifth European Conference on Mathematics in Industry : June 6 - 9, 1990 Lahti / ed. by Matti Heili{\"o}},
  publisher = {Teubner},
  address   = {Stuttgart},
  isbn      = {3-519-02176-5},
  pages     = {335 -- 338},
  year      = {1991},
  language  = {en}
}
@article{MerschenzQuack1991,
  author    = {Merschenz-Quack, Angelika},
  title     = {Betriebsanweisungen beim Umgang mit Gefahrstoffen},
  series = {Elektro-Praktiker : Fachzeitschrift f{\"u}r Handwerk und Industrie},
  volume    = {Bd. 45},
  journal   = {Elektro-Praktiker : Fachzeitschrift f{\"u}r Handwerk und Industrie},
  number    = {H. 10},
  issn      = {0013-5569},
  pages     = {644 -- 649},
  year      = {1991},
  language  = {de}
}
@incollection{OezdilBerndtHoecker1991,
  author    = {{\"O}zdil, S. and Berndt, Heinz and H{\"o}cker, Hartwig},
  title     = {Systematische Erfassung der Best{\"a}ndigkeit von Ryton-, P84- und Dralon ATF 1063-Fasern unter Einwirkung verschiedener NOx-Konzentrationen in einem definierten Temperaturintervall},
  series = {Schriftenreihe des Deutschen Wollforschungsinstitutes an der Technischen Hochschule Aachen e.V.},
  booktitle = {Schriftenreihe des Deutschen Wollforschungsinstitutes an der Technischen Hochschule Aachen e.V.},
  number    = {107},
  publisher = {Dt. Wollforschungsinstitut},
  address   = {Aachen},
  issn      = {0930-3723},
  pages     = {89 -- 129},
  year      = {1991},
  language  = {de}
}
@article{Alt1991,
  author    = {Alt, Helmut},
  title     = {Effektivzins und APR},
  series = {Die Bank : Zeitschrift f{\"u}r Bankpolitik und Bankpraxis},
  volume    = {Jg. 31},
  journal   = {Die Bank : Zeitschrift f{\"u}r Bankpolitik und Bankpraxis},
  number    = {H. 4},
  issn      = {0342-3182},
  pages     = {230 -- 231},
  year      = {1991},
  language  = {de}
}
@article{AletseeBaumann1991,
  author    = {Aletsee, Ludwig and Baumann, Marcus},
  title     = {A laboratory incubator equipped with facilities to automatically simulate natural irradiance},
  series = {Boletim do Instituto Oceanogr{\´a}fico / Universidade de S{\~a}o Paulo},
  volume    = {Vol. 39},
  journal   = {Boletim do Instituto Oceanogr{\´a}fico / Universidade de S{\~a}o Paulo},
  number    = {No. 2},
  issn      = {1982-436X; 0080-6331},
  pages     = {155 -- 159},
  year      = {1991},
  language  = {en}
}
@misc{BerndtHoeckerKuropkaetal.1991,
  author    = {Berndt, Heinz and H{\"o}cker, Hartwig and Kuropka, Rolf and Kinkel, Joachim},
  title     = {Silane coated inorganic materials for chromatography : United States Patent},
  publisher = {[The United States Patent and Trademark Office]},
  address   = {[Alexandria, VA u.a.]},
  pages     = {9 S. : graph. Darst.},
  year      = {1991},
  language  = {en}
}
@article{PeekenRosenkranzSchelenz1991,
  author    = {Peeken, Heinz and Rosenkranz, Josef and Schelenz, R.},
  title     = {Ber{\"u}cksichtigung des Einflusses der Gleitlagergeh{\"a}usesteifigkeit auf das dynamische Verhalten von Rotoren},
  series = {Antriebstechnik : Organ der Forschungsvereinigung Antriebstechnik e.V.},
  volume    = {30},
  journal   = {Antriebstechnik : Organ der Forschungsvereinigung Antriebstechnik e.V.},
  number    = {9},
  issn      = {0341-2652},
  pages     = {71 -- 75},
  year      = {1991},
  language  = {de}
}
@incollection{GidomPietsch1991,
  author    = {Gidom, D. and Pietsch, Wolfram},
  title     = {Integrierte Steuerung von Bauprojekten durch Expertensysteme},
  series = {Dortmunder Expertensystemtage '91 : in Verbindung mit dem 3. Anwenderforum des KI-Verbundes NRW},
  booktitle = {Dortmunder Expertensystemtage '91 : in Verbindung mit dem 3. Anwenderforum des KI-Verbundes NRW},
  publisher = {T{\"U}V Rheinland},
  address   = {K{\"o}ln},
  isbn      = {3-88585-998-X},
  pages     = {356 -- 365},
  year      = {1991},
  language  = {de}
}
@misc{BiselliThoemmesWandrey1991,
  author    = {Biselli, Manfred and Th{\"o}mmes, J{\"o}rg and Wandrey, Christian},
  title     = {Verfahren und Vorrichtung zur Abtrennung von Ammonium aus w{\"a}ßrigen Fl{\"u}ssigkeiten [Europ{\"a}ische Patentanmeldung]},
  pages     = {1 -- 12},
  year      = {1991},
  language  = {de}
}