http://news.goo.ne.jp/article/asahi/nation/OSK201311290005.html

http://info.dwango.co.jp/recruit/graduate/guideline01/index.html

http://headlines.yahoo.co.jp/hl?a=20131201-00000015-mai-soci

http://www.nikkei.com/article/DGXNZO63421920R01C13A2CR8000/

http://headlines.yahoo.co.jp/hl?a=20131130-00000000-maiall-soci