@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042610,
 author = {Sugawara, Shinya},
 month = {Nov},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Firm-driven management for longevity risk : Analysis of lump-sum forward payments in Japanese nursing homes},
 year = {2013}
}