https://this.kiji.is/344094119507182689

https://mainichi.jp/articles/20180307/ddl/k02/040/136000c

http://www.kanaloco.jp/sp/article/315812

http://www3.nhk.or.jp/kansai-news/20180307/5840001.html

https://www3.nhk.or.jp/news/html/20180307/k10011354851000.html