http://www.nikkei-science.com/201409_074.html

http://slashdot.jp/story/14/07/20/227222/

http://www3.nhk.or.jp/news/html/20140724/k10013272091000.html

http://www.townnews.co.jp/0117/2014/07/24/245166.html

http://headlines.yahoo.co.jp/hl?a=20140724-00000151-mai-soci