http://book.asahi.com/reviews/column/2014021000002.html?iref=comtop_fbox_d2_

http://news.livedoor.com/article/detail/8546664/

http://headlines.yahoo.co.jp/hl?a=20140219-00000006-asahik-soci

http://sankei.jp.msn.com/affairs/news/140217/trl14021715030000-n1.htm

http://gendai.ismedia.jp/articles/-/38338

http://sankei.jp.msn.com/west/west_affairs/news/140219/waf14021907010001-n1.htm