@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042579,
 author = {Behrens, Kristian and Carl, Gaigne and Jacques-Francois, Thisse},
 month = {Dec},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Is the regulation of the transport sector always detrimental to consumers?},
 year = {2006}
}