@book{LitkeKunowSchulzWimmer2018,
  author    = {Hans-Dieter Litke and Ilonka Kunow and Heinz Schulz-Wimmer},
  title     = {Projektmanagement},
  edition   = {4. Auflage},
  isbn      = {978-3-648-12191-7},
  year      = {2018},
}