9Robert B. Noland and Muhammad M. Ishaque. Smart bicycles in an urban area: evaluation of a pilot scheme in london [J]. Journal of Public Transportation 2006, 9(5): 71-96.
10Karel Martens. The bicycle as a feedering mode: experiences from three European countries [J]. Transportation Research Part D 9, 2004:281-294. Paul De Maio. Will smart bikes succeed as public transportation in the United States? [J]. Journal of Public Transportation, 2004, 7(2): 1-15.