http://gigazine.net/news/20140526-super-important-tweet/

http://gendai.ismedia.jp/articles/-/39293

http://news.goo.ne.jp/article/mainichi_region/region/mainichi_region-20140527ddlk08040256000c.html

http://headlines.yahoo.co.jp/hl?a=20140527-00000088-jij-soci

http://kounomaki.blog84.fc2.com/blog-entry-808.html

http://www.tokyo-np.co.jp/article/chiba/20140526/CK2014052602000162.html