http://k-tai.impress.co.jp/cda/article/news_toppage/41306.html

http://www.asahi.com/national/update/0809/TKY200808090320.html

http://www.afpbb.com/article/environment-science-it/science-technology/2502873/3195307

http://www.47news.jp/CN/200808/CN2008080901000601.html

http://headlines.yahoo.co.jp/hl?a=20080809-00000051-yom-soci