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) D. J. Williams,Ring current and radiation belts,Reviews of Geophysics,8755-1209,American Geophysical Union (AGU),1987-04,25,3,570-578,https://cir.nii.ac.jp/crid/1363670320140927488,https://doi.org/10.1029/rg025i003p00570