@book{Vahrenkamp.1994,
  address = {München},
  author = {Vahrenkamp, Richard},
  interhash = {cd46542dae1ebaa2b651e1db5edfab0c},
  intrahash = {13778ea6f27b46d797d95b70618c5303},
  isbn = {3486224557},
  publisher = {Oldenbourg},
  title = {Produktions- und Logistikmanagement},
  url = {http://www.gbv.de/dms/ilmenau/toc/15676573X.PDF},
  year = 1994
}

@book{Klandt.1999,
  address = {M\"unchen},
  author = {Klandt, Heinz},
  interhash = {415f826d4be865bff12875818f67c340},
  intrahash = {f988689d00a55ffb1e5a6b2811fb4569},
  isbn = {3486244051},
  price = {DM 68.00},
  publisher = {Oldenbourg},
  title = {Gr\"undungsmanagement: der integrierte Unternehmensplan},
  year = 1999
}