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)
A. K. Pradhan and J. M. Shull,Density and Temperature Diagnostics of X-Ray Sources - Line Ratios for Helium-Like Ions,The Astrophysical Journal,0004-637X,American Astronomical Society,1981-10,249,,821,https://cir.nii.ac.jp/crid/1360580235200818176,https://doi.org/10.1086/159340