@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042077,
 author = {Bosch, Mariano and Julen, Esteban-Pretel},
 month = {Feb},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Cyclical Informality and Unemployment},
 year = {2009}
}