著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Shinohara,Automatic realtime detection of sudden commencement of geomagnetic storms,Journal of NICT,,,2005,52,3/4,197,https://cir.nii.ac.jp/crid/1371694366563542536,