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) "NAKAJIMA, Ryuzo",The Hα Emission of Helium-rich Stars,"The science reports of the Tohoku University. Ser. 8, Physics and astronomy",03885607,"Faculty of Science, Tohoku University",1981-12-05,2,3,130-142,https://cir.nii.ac.jp/crid/1050282677707831936,