@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042276,
 author = {Takahashi, Akihiko},
 month = {Aug},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {An Asymptotic Expansion Approach in Finance},
 year = {2007}
}