Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Sakuma Akimitsu,On Diversification of the Imperfectly Competitive Firm,一橋論叢,0018-2818,日本評論社,1978-06-01,79,6,717-735,https://cir.nii.ac.jp/crid/1390290699841785728,https://doi.org/10.15057/13297