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 "Grønn, Erik",Fixed-price models as a response to preference uncertainty,,[University of Oslo],1984,"Memorandum from Department of Economics, University of Oslo",,8257082740,,https://cir.nii.ac.jp/crid/1130000794982454272