NHK http://www3.nhk.or.jp/news/html/20141111/k10013103181000.htmlhttps://www.youtube.com/watch?v=tm1RRdV8uq4&list=UUXLQP3u5b7cjZxAUUU-tzwg
http://www.nicovideo.jp/watch/sm24897084
