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) E. Nahayo and P. B. Kotze,Polynomial modelling of CHAMP satellite data to investigate rapid secular variation fluctuations over southern Africa during 2003 and 2004,"EPS : Earth, Planets and Space",13438832,Tokyo : Terra Scientific Pub. Co,2012,64,7,595-603,https://cir.nii.ac.jp/crid/1522825130201062272,