@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042543,
 author = {Duffie, Darrel and Leandro, Saita and Ke, Wang},
 month = {Sep},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Multi-Period Corporate Default Prediction With Stochastic Covariates},
 year = {2005}
}