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
"Hammond, Peter J.",Ex-post optimality as a dynamiclly consistent objective for collective choice under uncertainty,,"Institute for Mathematical Studies in the Social Sciences, Stanford Univ.",1973,The economics series : technical report,,,,https://cir.nii.ac.jp/crid/1130282270063148032