@article{weko_12220_1,
   author	 = "Toru,Nakanishi and Toru,Fujiwara and Hajime,Watanabe",
   title	 = "An Anonymous Bidding Protocol without Any Reliable Center",
   journal	 = "情報処理学会論文誌",
   year 	 = "2000",
   volume	 = "41",
   number	 = "8",
   pages	 = "2161--2169",
   month	 = "aug"
}