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) Hyeog Ug Kwon and Jungsoo Park,"R&D, foreign ownership, and corporate groups: Evidence from Japanese firms",Research Policy,0048-7333,Elsevier BV,2018-03,47,2,428-439,https://cir.nii.ac.jp/crid/1360567182432525056,https://doi.org/10.1016/j.respol.2017.11.010