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) SMIRNOVA E. V.,"Modification of electron density profile about the earthquake epicenter by GPS data, Recent Advances in Space Technologies","Proceedings of 2nd International Conference on 9-11 June, 2005",,,2005,,,,https://cir.nii.ac.jp/crid/1573105975607110400,