@techreport{weko_20654_1,
   author	 = "芝野,耕司 and 林田,定一 and 佐藤,明子",
   title	 = "再帰的UNION",
   year 	 = "1989",
   institution	 = "東京国際大学, （株）アスキー, 三菱電機（株）",
   number	 = "37(1989-DBS-071)",
   month	 = "may"
}