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) Y. Kagan and L. Knopoff,Statistical study of the occurrence of shallow earthquakes,Geophysical Journal International,0956-540X,Oxford University Press (OUP),1978-10-01,55,1,67-86,https://cir.nii.ac.jp/crid/1363670320222162560,https://doi.org/10.1111/j.1365-246x.1978.tb04748.x