@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042911,
 author = {Kamiya, Kazuya and Sato, Meg},
 month = {Nov},
 note = {application/pdf, Revised in January 2012., 本文フィルはリンク先を参照のこと},
 title = {A Dynamic Multitask Model : Fixed Wage Contracts and Effort Allocation Problems},
 year = {2011}
}