@techreport{weko_20494_1,
   author	 = "渥美,亮",
   title	 = "オブジェクト指向データベースワークシートプログラムの概念",
   year 	 = "1991",
   institution	 = "三井造船（株）技術総括本部",
   number	 = "65(1991-DBS-084)",
   month	 = "jul"
}