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) ROPERCH P.,Paleointensity of the Earth's magnetic field during the Laschamp excursion and its geomagnetic implications,Earth Planet. Sci. Lett.,,,1988,88,,209-219,https://cir.nii.ac.jp/crid/1573105976482265728,