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) Macmillan Susan and Barton Charles E.,Magnetic Field Maps for IGRF 1995.,Journal of geomagnetism and geoelectricity,00221392,地球電磁気・地球惑星圏学会,1997,49,2/3,149-156,https://cir.nii.ac.jp/crid/1390001206509454848,https://doi.org/10.5636/jgg.49.149