http://www.asahi.com/articles/ASG782DTSG78UHBI00D.html?iref=comtop_6_06

http://headlines.yahoo.co.jp/hl?a=20140709-00000083-jij-soci

http://gigazine.net/news/20140708-hd-sniffing-dog/

http://www3.nhk.or.jp/news/html/20140708/k10015819221000.html

http://headlines.yahoo.co.jp/hl?a=20140707-00090122-kana-l14

http://headlines.yahoo.co.jp/hl?a=20140709-00000011-mai-soci