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) A. T. Aikio and T. Pitkänen and A. Kozlovsky and O. Amm,Method to locate the polar cap boundary in the nightside ionosphere and application to a substorm event,Annales Geophysicae,1432-0576,Copernicus GmbH,2006-08-09,24,7,1905-1917,https://cir.nii.ac.jp/crid/1361699994591577984,https://doi.org/10.5194/angeo-24-1905-2006