@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042075,
 author = {Abe, Makoto},
 month = {Mar},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Customer Lifetime Value and RFM Data : Accounting Your Customers: One by One},
 year = {2009}
}