http://gigazine.net/news/20130811-forword-time-capsule/

http://www.nikkei.com/article/DGXNASDD050GN_V00C13A8XX1000/

http://news.goo.ne.jp/article/dot/trend/dot-2013080800019.html?fr=rk

http://gigazine.net/news/20130812-cycling-popular-in-netherland/

http://headlines.yahoo.co.jp/hl?a=20130811-00000016-kana-l14