@techreport{weko_20439_1,
   author	 = "三浦,孝夫",
   title	 = "データベース視覚言語の標準形",
   year 	 = "1992",
   institution	 = "産能大学",
   number	 = "61(1992-DBS-089)",
   month	 = "jul"
}