@book{Chmielewicz.1989,
  address = {Stuttgart},
  author = {Chmielewicz, Klaus},
  interhash = {2138c278ce9aae04f77a7188bf941790},
  intrahash = {d8e4f18024dc0c9340727bd7bbdf53dd},
  isbn = {3791080245},
  publisher = {Poeschel},
  series = {Enzyklopädie der Betriebswirtschaftslehre},
  title = {Handwörterbuch der Öffentlichen Betriebswirtschaft},
  volume = {Bd. 11},
  year = 1989
}

@book{Jacob.1986,
  address = {Wiesbaden},
  author = {Jacob, Herbert},
  edition = {3., überarb. Aufl.},
  interhash = {af5965d467e42f38785a80c11a8a8209},
  intrahash = {8adf49ffbbd17ef3d899ac990917193e},
  isbn = {3409330356},
  price = {Pp. : DM 128.00},
  publisher = {Gabler},
  series = {Gabler-Lehrbuch},
  title = {Industriebetriebslehre:  Handbuch für Studium u. Prüfung},
  year = 1986
}