@techreport{weko_20680_1,
   author	 = "穂鷹良介 and 北原匡",
   title	 = "データベース設計支援システムSDDM - CAD",
   year 	 = "1988",
   institution	 = "筑波大学, 筑波大学",
   number	 = "67(1988-DBS-067)",
   month	 = "sep"
}