@book{SchweigKeuchelKleineWiskottetal.2011,
  author    = {Karl-Heinz Schweig and Stephan Keuchel and Roland Kleine-Wiskott and Rolf Hermes and Clemens Van Acken},
  title     = {Car-Sharing in kleinen und mittleren Gemeinden},
  isbn      = {3-86509-134-2},
  year      = {2011},
}