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) Patrick Alken and Stefan Maus,"Spatio‐temporal characterization of the equatorial electrojet from CHAMP, Ørsted, and SAC‐C satellite magnetic measurements",Journal of Geophysical Research: Space Physics,0148-0227,American Geophysical Union (AGU),2007-09,112,A9,A09305,https://cir.nii.ac.jp/crid/1363951794008790656,https://doi.org/10.1029/2007ja012524