@book{HagenKohnUllrich2011,
  author    = {Hagen, Tobias and Kohn, Karsten and Ullrich, Katrin},
  title     = {KfW-Gr{\"u}ndungsmonitor : j{\"a}hrliche Analyse von Struktur und Dynamik des Gr{\"u}ndungsgeschehens in Deutschland},
  publisher = {Frankfurt am Main},
  organization    = {KfW-Bankengruppe},
  isbn      = {1867-1489},
  pages     = {104},
  year      = {2011},
  subject      = {Wirtschaft},
  language  = {de}
}
@book{MetzgerUllrichHagen2012,
  author    = {Metzger, Georg and Ullrich, Katrin and Hagen, Tobias},
  title     = {Boom auf dem Arbeitsmarkt d{\"a}mpft Gr{\"u}ndungsaktivit{\"a}t : j{\"a}hrliche Analyse von Struktur und Dynamik des Gr{\"u}ndungsgeschehens in Deutschland},
  series = {KfW-Gr{\"u}ndungsmonitor ; 2012},
  journal   = {KfW-Gr{\"u}ndungsmonitor ; 2012},
  publisher = {KfW Bankengruppe},
  address   = {Frankfurt am Main},
  issn      = {1867-1489},
  pages     = {XIII, 139 S.},
  year      = {2012},
  subject      = {Deutschland},
  language  = {de}
}