@article{Fabo1992,
  author    = {Fabo, Sabine},
  title     = {Roaratorio : John Cage},
  series = {Diagonal : Zeitschrift der Universit{\"a}t Siegen},
  volume    = {4(1992)},
  journal   = {Diagonal : Zeitschrift der Universit{\"a}t Siegen},
  number    = {Heft "Experimente"},
  address   = {Siegen},
  isbn      = {0938-7161},
  pages     = {201 -- 210},
  year      = {1992},
  language  = {de}
}
@book{CasseSchlueter2000,
  author    = {Casse-Schl{\"u}ter, Doris},
  title     = {Projekt l'esprit d'Europe : Schlußbericht ; ... Durchf{\"u}hrung des Programms zur F{\"o}rderung anwendungsorientierter Forschung und Entwicklung an Fachhochschulen},
  publisher = {Fachhochschule Aachen, Fachbereich Design},
  address   = {Aachen},
  pages     = {ca. 130 Bl. : zahlr. Ill.},
  year      = {2000},
  language  = {de}
}
@book{MaetherPreising1995,
  author    = {Maether, Christiane and Preising, Dagmar},
  title     = {Wechselgesang : Arbeiten auf Papier 1991 - 1995 / Katalog und Ausstellung: Dagmar Preising},
  address   = {Aachen},
  pages     = {63 S. : {\"u}berw. Ill.},
  year      = {1995},
  language  = {de}
}
@book{Maether1975,
  author    = {Maether, Christiane},
  title     = {Christiane Maether, Zeichnungen},
  address   = {Baden-Baden},
  pages     = {32 S. : {\"u}berw. Ill.},
  year      = {1975},
  language  = {de}
}
@book{Maether1987,
  author    = {Maether, Christiane},
  title     = {Zeichnung und Malerei / Text: Wolfgang Becker},
  address   = {Aachen},
  pages     = {71 S.: {\"u}berw. Ill.},
  year      = {1987},
  language  = {de}
}
@book{HegewaldMeyerHartwigBleifeld1978,
  author    = {Hegewald, Ulf and Meyer-Hartwig, Katharina and Bleifeld, Walter},
  title     = {Ein mal 1 zum Entwurf von Diapositiven / Katharina Meyer-Hartwig ; Walter Bleifeld ; Ulf Hegewald},
  publisher = {Witzstrock},
  address   = {Bade-Baden [u.a.]},
  isbn      = {3-87921-062-4},
  pages     = {56 S. : Ill., graph. Darst.},
  year      = {1978},
  language  = {de}
}
@book{Hegewald1989,
  author    = {Hegewald, Ulf},
  title     = {Ulf Hegewald : Skulpturen aus Ton 1985 - 89 / Text: Wolfgang Becker. Gestaltung: Ulf Hegewald},
  address   = {Aachen},
  pages     = {91 S. : {\"u}berw. Ill.},
  year      = {1989},
  language  = {de}
}
@book{Hegewald1987,
  author    = {Hegewald, Ulf},
  title     = {Ulf Hegewald / hrsg. von Marianne Hennemann},
  publisher = {Galerie Hennemann},
  address   = {Bonn},
  isbn      = {3-88482-032-X},
  pages     = {88 S. : {\"u}berw. Ill.},
  year      = {1987},
  language  = {de}
}
@book{Hegewald1999,
  author    = {Hegewald, Ulf},
  title     = {Ziegelfeld am Keramion, Frechen ; 16.5.1999 - 30.9.2000, Keramion, Museum f{\"u}r zeitgen{\"o}ssische keramische Kunst},
  address   = {Frechen},
  pages     = {95 S. : zahlr. Ill., graph. Darst.},
  year      = {1999},
  language  = {de}
}
@book{Hegewald1985,
  author    = {Hegewald, Ulf},
  title     = {Das Duisburg-Projekt : Studenten der Fachhochschule Aachen zeichnen und malen in Duisburg-Hamborn / Fachhochschule Aachen. Projektleitung: Ulf Hegewald ...},
  address   = {Aachen},
  pages     = {77 S. : nur Ill.},
  year      = {1985},
  language  = {de}
}