@article{weko_183016_1,
   author	 = "Hiroyuki,Umeda and Takao,Asano",
   title	 = "Nash Equilibria in Combinatorial Auctions with Item Bidding by Two Bidders",
   journal	 = "情報処理学会論文誌",
   year 	 = "2017",
   volume	 = "58",
   number	 = "8",
   month	 = "aug"
}