https://newswitch.jp/p/10790

https://forbesjapan.com/articles/detail/18195/1/1/1

http://www.asahi.com/articles/ASKBS5QN0KBSUTIL02P.html

https://headlines.yahoo.co.jp/hl?a=20171024-00000067-jij-soci http://kanz.jp/hanrei/detail/87157/

https://headlines.yahoo.co.jp/hl?a=20171024-00000033-mai-soci