@misc{oai:tsukuba.repo.nii.ac.jp:00029972,
 author = {平山, 朝治 and HIRAYAMA, Asaji},
 month = {},
 note = {関連論文："The evolution of reciprocity and exchange,"The University of Tsukuba Economic Review, No.66, March 2014 forthcoming in this repository},
 title = {交換と貨幣の起源(1)},
 year = {2013},
 yomi = {ヒラヤマ, アサジ}
}