@book{1811,
  author       = {Kaiser, Stephan and Paust, Robert and Kampe, Tim},
  isbn         = {978-3-7143-0122-9},
  pages        = {128},
  publisher    = {Linde Verlag},
  title        = {{Externe Mitarbeiter: Erfolgreiches Management externer Professionals, Freelancer und Dienstleister}},
  year         = {2007},
}