@book{Sponagel1982,
  author    = {Sponagel, Stefan},
  title     = {{\"U}ber die Stabilit{\"a}t einer einfachen viskometrischen Bewegung},
  address   = {Darmstadt},
  pages     = {106 S. : graph. Darst., 21 cm},
  year      = {1982},
  language  = {de}
}
@book{Sponagel1987,
  author    = {Sponagel, Stefan},
  title     = {Gummi-Metall-Bauteile},
  address   = {Kaiserslautern},
  pages     = {126 S. : Ill., graph. Darst.},
  year      = {1987},
  language  = {de}
}
@book{Ackermann1996,
  author    = {Ackermann, Hans-Josef},
  title     = {Hardware-Unterst{\"u}tzung f{\"u}r effiziente Dreiecksrasterisierung und texture mapping},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {3826512081},
  pages     = {III, 162 S : Ill., graph. Darst.},
  year      = {1996},
  language  = {de}
}
@book{AckermannMehlPeischl1990,
  author    = {Ackermann, Hans-Josef and Mehl, Max and Peischl, Markus},
  title     = {Modulares Graphik-Subsystem f{\"u}r die Echtzeitdarstellung von 3D-Anwendungen : Abschlußbericht ; Contract NT 2815-A-8 / Hans-Josef Ackermann; Max Mehl; Markus Peischl. Fachbereich Informatik, Technische Hochschule Darmstadt; Bundesministerium f{\"u}r Forschung und Technologie, Bonn},
  publisher = {Techn. Hochschule},
  address   = {Darmstadt},
  pages     = {ca. 100 S.},
  year      = {1990},
  language  = {de}
}
@book{Grueters1987,
  author    = {Gr{\"u}ters, Hugo},
  title     = {Mechanik: Vorlesung},
  publisher = {Becker-Kuns},
  address   = {Aachen},
  pages     = {253 S.: zahlr. graph. Darst.},
  year      = {1987},
  language  = {de}
}
@book{Grueters1971,
  author    = {Gr{\"u}ters, Hugo},
  title     = {Berechnung des Spannungszustandes in homogenen anisotropen Scheiben mit Hilfe einer Integralgleichungsmethode},
  year      = {1971},
  language  = {de}
}
@book{GruetersPeters1984,
  author    = {Gr{\"u}ters, Hugo and Peters, Norbert},
  title     = {Mechanik. Bd. 2 Dynamik. Peters, Norbert; Gr{\"u}ters, Hugo},
  publisher = {Inst. f{\"u}r Techn. Mechanik, RWTH Aachen},
  address   = {Aachen},
  pages     = {138, 13 S.: graph Darst.},
  year      = {1984},
  language  = {de}
}
@book{Laack2000,
  author    = {Laack, Walter van},
  title     = {Eine bessere Geschichte unserer Welt / Bd. 1. Das Universum},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-8311-0345-4},
  pages     = {196 S.},
  year      = {2000},
  language  = {de}
}
@book{Laack2001,
  author    = {Laack, Walter van},
  title     = {Eine bessere Geschichte unserer Welt / Bd. 2. Das Leben},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-8311-2114-4},
  pages     = {248 S.},
  year      = {2001},
  language  = {de}
}
@book{Laack2002,
  author    = {Laack, Walter van},
  title     = {Eine bessere Geschichte unserer Welt / Bd. 3. Der Tod},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-8311-3581-3},
  pages     = {248 S.},
  year      = {2002},
  language  = {de}
}