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
"Levitan, R. E. and Shubik, M.",Noncooperative equilibria and strategy spaces in an oligopolistic market,,Cowles Foundation for Research in Economics at Yale University,1971,Cowles Foundation paper,,,,https://cir.nii.ac.jp/crid/1130282269172286208