@book{BreitbachAhmedOver1991,
  author    = {Breitbach, Gerd and Ahmed, K. and Over, H.},
  title     = {Ermittlung von Sicherheitsabst{\"a}nden bei Kriechbelastung von Prim{\"a}rkreiskomponenten durch Simulation von Druckentlastungsst{\"o}rf{\"a}llen einer HTR-Anlage (SR 383) : Abschlußbericht},
  publisher = {Forschungszentrum J{\"u}lich, Zentralbibliothek},
  address   = {J{\"u}lich},
  pages     = {Getr. Z{\"a}hlung : Ill., graph. Darst.},
  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}
}
@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}
}
@book{OPUS4-1635,
  title     = {Joseph Beuys : Natur, Materie, Form},
  editor    = {Zweite, Armin},
  publisher = {Schirmer/Mosel},
  address   = {M{\"u}nchen [u.a.]},
  isbn      = {3-88814-453-1},
  pages     = {360 S. : {\"u}berw. Ill.},
  year      = {1991},
  language  = {de}
}
@book{EngelnMuellgesReutter1991,
  author    = {Engeln-M{\"u}llges, Gisela and Reutter, Fritz},
  title     = {Formelsammlung zur numerischen Mathematik mit Quick-BASIC-Programmen. Anh. Quick-BASIC-Programme / von J{\"u}rgen Dietel ... / von Gisela Engeln-M{\"u}llges und Fritz Reutter},
  publisher = {BI-Wiss.-Verl.},
  address   = {Mannheim, Wien , Z{\"u}rich},
  isbn      = {3-411-14312-6},
  pages     = {XXIV, 1006 S., 24 cm},
  year      = {1991},
  language  = {de}
}
@book{FaboEisenbeisHageboelling1991,
  author    = {Fabo, Sabine and Eisenbeis, Manfred and Hageb{\"o}lling, Heide},
  title     = {Projekt f{\"u}r die Gr{\"u}ndung eines Internationalen Zentrums f{\"u}r Kunst und Medien : M{\"o}glichkeitsstudie f{\"u}r die UNESCO},
  publisher = {Kunsthochschule f{\"u}r Medien K{\"o}ln},
  address   = {K{\"o}ln},
  year      = {1991},
  language  = {de}
}