@techreport{weko_20587_1,
   author	 = "増永良文",
   title	 = "次世代データベースシステムの展望",
   year 	 = "1990",
   institution	 = "図書館情報大学",
   number	 = "63(1990-DBS-078)",
   month	 = "jul"
}