著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"伊藤, 秀史",On incentives to help in multi-agent situations,revised ed.,"Graduate School of International Relations and Pacific Studies, University of Califoria, San Diego",1988,IR/PS Research report,,,,https://cir.nii.ac.jp/crid/1130282269108374016