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) David Gubbins and Peter Kelly,Persistent patterns in the geomagnetic field over the past 2.5 Myr,Nature,0028-0836,Springer Science and Business Media LLC,1993-10,365,6449,829-832,https://cir.nii.ac.jp/crid/1363107371147081600,https://doi.org/10.1038/365829a0