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) X. Pi and A. J. Mannucci and U. J. Lindqwister and C. M. Ho,Monitoring of global ionospheric irregularities using the Worldwide GPS Network,Geophysical Research Letters,0094-8276,American Geophysical Union (AGU),1997-09-15,24,18,2283-2286,https://cir.nii.ac.jp/crid/1364233269802479488,https://doi.org/10.1029/97gl02273