@techreport{weko_21718_1,
   author	 = "友納,正裕",
   title	 = "オブジェクト指向設計におけるクリーンルーム手法",
   year 	 = "1998",
   institution	 = "NEC C& C メディア研究所",
   number	 = "20(1997-SE-118)",
   month	 = "mar"
}