http://gigazine.net/news/20140124-piracy-law-no-deterrent-effect/

http://news.goo.ne.jp/article/mainichi/politics/20140125k0000m010105000c.html

http://headlines.yahoo.co.jp/hl?a=20140125-00010002-minyu-l07

http://sankei.jp.msn.com/region/news/140124/kng14012420390005-n1.htm

http://news.goo.ne.jp/article/mainichi/nation/20140125k0000m040102000c.html