1. The bicycle as a feedering mode: experiences from three European countries;Martens;Transport. Res. D. Trans. Environ.,2004
2. Department of Environment, Transport and the Regions, 1999. Bikerail: combined journeys by cycle and rail, DETR.∗∗∗
3. Bundesministerium fuer Verkehr, Bau-und Wohnungswesen, 2002. Fahrrad! Nationaler Radverkehrsplan 2002–2012: Massnahmen zur Foerderung des Radverkehrs in Deutschland. Bericht der Bundesregierung, Berlin.
4. Integration of Bicycles and Transit;Doolittle,1994
5. C.A. Hagelin, A Return on Investment Analysis of Bikes-on-Bus Programs, State of Florida Department of Transportation/National Center for Transit Research, Tallahassee, FL/Tampa, FL, 2005.