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 "Dahlstedt, Roy and Soismaa, Margareta",A multiperiod mixed-integer optimization model of the Soviet-type industrial enterprise,,Helsinki School of Economics,1980,Helsingin Kauppakorkeakoulun julkaisuja,,9516993044,,https://cir.nii.ac.jp/crid/1130000796824340736