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) S. Persides and I. Ioannides,Einstein-Maxwell Fields in Asymptotically Null-Spherical Coordinates,Progress of theoretical physics = 理論物理学の進歩,0033068X,Kyoto : Publication Office,1977-09,58,3,p829-841,https://cir.nii.ac.jp/crid/1523669555474214784,https://doi.org/10.1143/ptp.58.829