http://www.nikkei.com/article/DGXNASGN16025_W3A110C1000000/

http://www.fben.jp/bookcolumn/2013/01/post_3503.html

http://www.westlawjapan.com/p_affairs/2013/20130116_s.html

http://headlines.yahoo.co.jp/hl?a=20130116-00000104-jij-soci

http://www.47news.jp/CN/201301/CN2013011601001393.html