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) Yoichi Takeda and Masahide Takada-Hidai,Chromospheres in metal-poor stars evidenced from the He I 10830A line,Publications of the Astronomical Society of Japan,00046264,Tokyo : Astronomical Society of Japan,2011,63,-,S547-554,https://cir.nii.ac.jp/crid/1521699230899049088,