@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00041963,
 author = {Tabuchi, Takatoshi and Jacques-Francois, Thisse and Dao-Zhi, Zeng},
 month = {Sep},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {On the Evolution of a Multi-regional System},
 year = {2000}
}