@techreport{weko_20563_1,
   author	 = "三ッ井欽一",
   title	 = "COBにおける持続性オブジェクトの設計と実現",
   year 	 = "1990",
   institution	 = "日本アイビーエム株式会社東京基礎研究所",
   number	 = "68(1990-DBS-079)",
   month	 = "sep"
}