@article{weko_7431_1,
   author	 = "穂鷹,良介 and 渋谷,政昭",
   title	 = "データベース特集号：データベースの関係形式",
   journal	 = "情報処理",
   year 	 = "1976",
   volume	 = "17",
   number	 = "10",
   month	 = "oct"
}