@techreport{weko_20086_1,
   author	 = "大塚真吾 and 宮崎,収兄",
   title	 = "広域検索のための関係代数の拡張",
   year 	 = "1996",
   institution	 = "千葉工業大学情報工学科, 千葉工業大学情報工学科",
   number	 = "68(1996-DBS-109)",
   month	 = "jul"
}