@phdthesis{theses_frw151,
          author = {C. de Jong},
            year = {2006},
           title = {The Integration of Berlin?s Public Transport},
        abstract = {This paper discusses the integration of the public transport at fields of network, tickets, and information and with other modes of transport. Major conclusions are that the co-ordination between the transport actors should improve in order to reach a higher level of integration between the different transport modes.},
             url = {https://frw.studenttheses.ub.rug.nl/151/}
}