@book{DietrichDuvinageObstetal.1992,
  author    = {Volkmar Dietrich and Brigitte Duvinage and H. Obst and Karin Arnold},
  title     = {Chemie : Arbeitsheft ; 3. Alkane - Alkene - Alkine, Alkohole - Aldehyde - Carbons{\"a}uren, Seifen und Waschmittel u.a.},
  year      = {1992},
}