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) Electdom Matandirotya and Pierre. J. Cilliers and Robert R Van Zyl and David T. Oyedokun and Jean de Villiers,Differential magnetometer method applied to measurement of geomagnetically induced currents in Southern African power networks,Space Weather,1542-7390,American Geophysical Union (AGU),2016-03,14,3,221-232,https://cir.nii.ac.jp/crid/1362825894291799808,https://doi.org/10.1002/2015sw001289