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 "Ishii, Yasunori",On the theory of international trade under uncertainty in the presence of forward and securities markets,,"Institute of Economic Research, Hitotsubashi University",1985,Discussion paper series,,,,https://cir.nii.ac.jp/crid/1130282270725762176