@techreport{weko_20913_1,
   author	 = "増永良文",
   title	 = "仮想化技法としてのデータベースビューについて",
   year 	 = "1981",
   institution	 = "東北大学電気通信研究所",
   number	 = "49(1980-DBS-024)",
   month	 = "mar"
}