@techreport{weko_50793_1,
   author	 = "七條,達弘 and 蔵,琢也",
   title	 = "WTPゲーム不完全市場の理解へ向けて",
   year 	 = "1998",
   institution	 = "京都大学人間・環境学研究科, 京都大学理学部",
   number	 = "4(1997-ICS-110)",
   month	 = "jan"
}