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) M. Ghezelbash and R. A. D. Fiori and A V. Koustov,Variations in the occurrence of SuperDARN F region echoes,Annales Geophysicae,1432-0576,Copernicus GmbH,2014-02-20,32,2,147-156,https://cir.nii.ac.jp/crid/1360011146436827008,https://doi.org/10.5194/angeo-32-147-2014