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) Kazunori Kohri and Kei Iida and Katsuhiko Sato,Upper Limit on the Mass of RX J1856.5-3754 as a Possible Quark Star,Progress of theoretical physics = 理論物理学の進歩,0033068X,Kyoto : Publication Office,2003-05,109,5,765-780,https://cir.nii.ac.jp/crid/1520291855990576384,https://doi.org/10.1143/ptp.109.765