@techreport{weko_20840_1,
   author	 = "穂鷹良介",
   title	 = "DBMS参照モデル",
   year 	 = "1984",
   institution	 = "筑波大・社会工学",
   number	 = "25(1984-DBS-042)",
   month	 = "jul"
}