@book{DuitMikelskis1993,
  author    = {Duit, Reinders and Mikelskis, Helmut},
  title     = {Physik, um die Welt zu begreifen : ein Lehrbuch f{\"u}r die Jahrgangsstufe 5/6 ; [Hauptbd.], Nordrhein- Westfalen},
  publisher = {Diesterweg},
  address   = {Frankfurt am Main},
  isbn      = {3-425-03671-8},
  pages     = {120 S.},
  year      = {1993},
  language  = {de}
}
@book{DuitMikelskis1993,
  author    = {Duit, Reinders and Mikelskis, Helmut},
  title     = {Physik - Chemie, um die Welt zu begreifen : ein Lehrbuch f{\"u}r die Orientierungsstufe ; [Hauptbd.], Niedersachsen},
  volume    = {3675},
  publisher = {Diesterweg},
  address   = {Frankfurt am Main},
  isbn      = {3-425-03675-0},
  pages     = {80 S.},
  year      = {1993},
  language  = {de}
}
@book{MarquardtMauMayerMikelskis1993,
  author    = {Marquardt-Mau, Brunhilde and Mayer, J{\"u}rgen and Mikelskis, Helmut},
  title     = {Umwelt : Lexikon {\"o}kologisches Grundwissen},
  volume    = {6337},
  publisher = {Rowohlt},
  address   = {Reinbek bei Hamburg},
  isbn      = {3-499-16337-3},
  pages     = {509 S.},
  year      = {1993},
  language  = {de}
}
@book{HaenselNeumannHudel1993,
  author    = {H{\"a}nsel, Horst and Neumann, Werner and Hudel, Erich},
  title     = {Physik : Bd. 2 Elektrizit{\"a}t, Optik, Raum und Zeit},
  volume    = {2},
  publisher = {Spektrum Akad. Verl.},
  address   = {Heidelberg},
  isbn      = {3-86025-304-2},
  pages     = {799 S.},
  year      = {1993},
  language  = {de}
}
@book{HaenselNeumannWedell1993,
  author    = {H{\"a}nsel, Horst and Neumann, Werner and Wedell, Reiner},
  title     = {Physik : Bd. 1 Mechanik und W{\"a}rmelehre},
  volume    = {1},
  publisher = {Spektrum Akad. Verl.},
  address   = {Heidelberg},
  isbn      = {3-86025-046-9},
  pages     = {584 S.},
  year      = {1993},
  language  = {de}
}
@book{DuitMikelskis1994,
  author    = {Duit, Reinders and Mikelskis, Helmut},
  title     = {Physik, um die Welt zu begreifen : ein Lehrbuch f{\"u}r die Jahrgangsstufe 7/8 ; [Hauptbd.], Niedersachsen},
  publisher = {Diesterweg; Konkordia-Verl.},
  address   = {Frankfurt am Main; B{\"u}hl},
  isbn      = {3-425-03676-9},
  pages     = {176 S.},
  year      = {1994},
  language  = {de}
}
@book{Liebers1995,
  author    = {Liebers, Klaus},
  title     = {Optische Ger{\"a}te},
  series = {Naturwissenschaften : Biologie, Chemie, Physik},
  journal   = {Naturwissenschaften : Biologie, Chemie, Physik},
  publisher = {Volk und Wissen},
  address   = {Berlin},
  pages     = {80 S.},
  year      = {1995},
  language  = {de}
}
@book{Janietz1995,
  author    = {Janietz, Dietmar},
  title     = {Fl{\"u}ssigkristalle in d{\"u}nnen organischen Schichten},
  year      = {1995},
  language  = {de}
}
@book{HaenselNeumannHudel1995,
  author    = {H{\"a}nsel, Horst and Neumann, Werner and Hudel, Erich},
  title     = {Physik : Bd. 3 Atome, Atomkerne, Elementarteilchen},
  volume    = {3},
  publisher = {Spektrum Akad. Verl.},
  address   = {Heidelberg},
  isbn      = {3-86025-313-1},
  pages     = {742 S.},
  year      = {1995},
  language  = {de}
}
@book{MarquardtMauMayerMikelskis1995,
  author    = {Marquardt-Mau, Brunhilde and Mayer, J{\"u}rgen and Mikelskis, Helmut},
  title     = {Umwelt : Lexikon der Grundbegriffe ; {\"o}kologisches Grundwissen ; f{\"u}r Windows},
  publisher = {Systhema; Systhema-Verl.},
  address   = {M{\"u}nchen},
  isbn      = {3-634-22123-2},
  pages     = {3 Disketten},
  year      = {1995},
  language  = {de}
}