Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tanaka Katsuki and Endo Masayuki,Impact of coronavirus on securties companies,Abstracts of Annual Conference of Japan Society for Management Information,,THE JAPAN SOCIETY FOR MANAGEMENT INFORMATION (JASMIN),2021-01-28,202011,0,117-120,https://cir.nii.ac.jp/crid/1390286981376566912,https://doi.org/10.11497/jasmin.202011.0_117