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) 川島 真,China as “Empire”: Perceptions of the Tributary System and the Boundaries of China in the Twentieth Century,The Japan Institute of International Affairs,,,2022,-,,1-13,https://cir.nii.ac.jp/crid/1010298668297607055,