@techreport{oai:muroran-it.repo.nii.ac.jp:00010794,
 author = {岡,  和喜男 and OKA, Wakio},
 month = {},
 note = {application/pdf},
 title = {リレーショナル・データベース研修報告},
 year = {2001},
 yomi = {オカ, ワキオ}
}