http://www.asahi.com/articles/TKY201312090069.html

http://headlines.yahoo.co.jp/hl?a=20131209-00000388-yom-soci

http://biz-journal.jp/2013/12/post_3550.html

http://sankei.jp.msn.com/affairs/news/131206/crm13120620500026-n1.htm

http://headlines.yahoo.co.jp/hl?a=20131209-00000007-kobenext-l28

http://www.nikkei.com/article/DGXNASDG0904G_Z01C13A2CC1000/