@book{Kraemer1991,
  author    = {Kr{\"a}mer, Raimund},
  title     = {Kuba : das Ende des "karibischen Sozialismus"},
  year      = {1991},
  language  = {de}
}
@article{FrohneGueldner1991,
  author    = {Frohne, Irene and G{\"u}ldner, Karin},
  title     = {Klasse 3b erarbeitet einen Touristenplan},
  year      = {1991},
  language  = {de}
}
@phdthesis{Schirmer1991,
  author    = {Schirmer, Andr{\´e}},
  title     = {Jack London zwischen Institution Kunst und Massenkultur : Studien zu Poetik und diskursiver Praxis eines Autors},
  pages     = {194, 14 S.},
  year      = {1991},
  language  = {de}
}
@phdthesis{Kitsche1991,
  author    = {Kitsche, Annett},
  title     = {Autorensysteme und ihre Potenzen f{\"u}r die computerunterst{\"u}tzte Arbeit mit Fehlertexten im Russistik- bzw. Fremdsprachenstudium},
  pages     = {129, [51] S.},
  year      = {1991},
  language  = {de}
}
@article{Franzke1991,
  author    = {Franzke, Jochen},
  title     = {Der August 1991 und die Folgen},
  year      = {1991},
  language  = {de}
}
@article{Neumann1991,
  author    = {Neumann, Werner},
  title     = {Stromtr{\"a}gerrelaxationen in hochohmigen Polymerfestk{\"o}rpern},
  year      = {1991},
  language  = {de}
}
@article{Kiesant1991,
  author    = {Kiesant, Knut},
  title     = {Zur Rezeption der Lyrik des 17. Jahrhunderts in der DDR : Referat auf dem 6. Jahrestreffen des Internationalen Arbeitskreises f{\"u}r Barockliteratur, Wolfenb{\"u}ttel 1988},
  year      = {1991},
  language  = {de}
}
@book{Teichler1991,
  author    = {Teichler, Hans Joachim},
  title     = {Sozial- und Zeitgeschichte des Sports},
  editor    = {Spitzer, Giselher and Pfeiffer, Lorenz},
  publisher = {Meyer + Meyer},
  address   = {Aachen},
  year      = {1991},
  language  = {de}
}
@book{OPUS4-29385,
  title     = {Marketing : Zeitschrift f{\"u}r Forschung und Praxis},
  editor    = {Balderjahn, Ingo},
  publisher = {Beck},
  address   = {M{\"u}nchen},
  year      = {1991},
  language  = {de}
}
@book{OPUS4-29388,
  title     = {Modernisierung des {\"o}ffentlichen Sektors},
  editor    = {Jann, Werner},
  publisher = {Ed. Sigma},
  address   = {Berlin},
  year      = {1991},
  language  = {de}
}