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) HAYAKAWA M.,The precursory signature effect of the Kobe earthquake in VLF subionospheric signal,"J. Comm. Res. Lab., Tokyo",,,1996,43,,169-180,https://cir.nii.ac.jp/crid/1570291224958025088,