http://dtoac.com/blog/20141205/12767

http://www.nhk.or.jp/gendai/yotei/index_yotei_3592.html

http://www3.nhk.or.jp/news/html/20141209/k10013827901000.html http://www.moj.go.jp/content/001129588.pdf

http://ameblo.jp/kantokozo/entry-11961402703.html

http://www.47news.jp/CN/201412/CN2014120901002139.html

http://www.sankei.com/affairs/news/141209/afr1412090026-n1.html