http://www.asahi.com/national/update/0330/OSK201303300092.html?tr=pc

http://gigazine.net/news/20130330-radiate-athletics/

http://news.goo.ne.jp/article/sankei/life/snk20130330140.html

http://www4.nhk.or.jp/chihouhatsu/x/2013-04-01/21/10177/

http://www.chugoku-np.co.jp/News/Tn201303300030.html