@book{DietrichDuvinageObstetal.1992,
  author    = {Dietrich, Volkmar and Duvinage, Brigitte and Obst, H. and Arnold, Karin},
  title     = {Chemie : Arbeitsheft ; 3. Alkane - Alkene - Alkine, Alkohole - Aldehyde - Carbons{\"a}uren, Seifen und Waschmittel u.a.},
  publisher = {Volk und Wissen},
  address   = {Berlin},
  year      = {1992},
  language  = {de}
}
@book{Dietrich1992,
  author    = {Dietrich, Volkmar},
  title     = {Korrosion - Korrosionsschutz : eine fachlich-methodische Handreichung},
  publisher = {P{\"a}dagogisches Zentrum, Ref. II D Curriculare Entwicklungen},
  address   = {Berlin},
  year      = {1992},
  language  = {de}
}