@techreport{weko_40155_1,
   author	 = "酒井,哲也",
   title	 = "A Further Note on Evaluation Metrics for the Task of Finding One Highly Relevant Document",
   year 	 = "2006",
   institution	 = "（株）東芝　研究開発センター",
   number	 = "33(2006-FI-082)",
   month	 = "mar"
}