https://www.nikkei.com/article/DGXKZO20577520R30C17A8EA1000/

http://www3.nhk.or.jp/fukuoka-news/20170831/3519751.html

https://mainichi.jp/articles/20170830/ddl/k27/040/317000c

https://headlines.yahoo.co.jp/hl?a=20170901-00000090-jij-soci

https://mainichi.jp/articles/20170901/ddn/041/040/014000c