@techreport{oai:ipsj.ixsq.nii.ac.jp:00020907,
 author = {川越恭二 and 真名垣昌夫},
 issue = {20(1981-DBS-026)},
 month = {Sep},
 title = {データベース設計における性能評価},
 year = {1981}
}