@techreport{weko_38873_1,
   author	 = "上田,祐彰 and 山縣,敬一",
   title	 = "設計問題の制約指向による改良解導出",
   year 	 = "1992",
   institution	 = "広島大学総合科学部, 広島大学総合科学部",
   number	 = "13(1991-CG-055)",
   month	 = "feb"
}