@techreport{weko_51018_1,
   author	 = "山田,誠二",
   title	 = "EBL効用問題の低コスト解決法とそのオンライン評価",
   year 	 = "1993",
   institution	 = "大阪大学産業科学研究所",
   number	 = "17(1992-ICS-087)",
   month	 = "mar"
}