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) Yoshio Fujita and Takashi Tsuji,The 12C/13C Ratio in Carbon Stars,Publications of the Astronomical Society of Japan,00046264,Tokyo : Astronomical Society of Japan,1977,29,4,p711-730,https://cir.nii.ac.jp/crid/1521980704945170304,