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) H. Yamaoka and Masa-aki Hashimoto and Yoshiharu Eriguchi and K. Nomoto,The ring around SN 1987A and rotation of the progenitor,The Astrophysical Journal,0004-637X,American Astronomical Society,1992-06-01,392,,243,https://cir.nii.ac.jp/crid/1873961342785131392,https://doi.org/10.1086/171422