http://kounomaki.blog84.fc2.com/blog-entry-1028.html

http://www.yomiuri.co.jp/national/20170627-OYT1T50144.html

https://headlines.yahoo.co.jp/hl?a=20170628-00000010-mai-soci

http://www3.nhk.or.jp/news/html/20170628/k10011033551000.html

http://www3.nhk.or.jp/news/html/20170628/k10011033041000.html