著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Hirayama Tsutomu,Why did the number of private shareholders in South Manchuria Railway continue to rise?,Japanese Research in Business History,1349-807X,経営史学会,2022,39,0,5-24,https://cir.nii.ac.jp/crid/1390013098760529152,https://doi.org/10.5029/jrbh.39.5