@article{weko_60549_1,
   author	 = "北,栄輔",
   title	 = "リコメンド・サービス・コンテスト実施報告",
   journal	 = "情報処理",
   year 	 = "2009",
   volume	 = "50",
   number	 = "4",
   pages	 = "334--341",
   month	 = "apr"
}