http://natalie.mu/music/news/105041

https://twitter.com/iranakatta/status/408446995418730496

https://twitter.com/seerged2/status/408410357397331969

http://www3.nhk.or.jp/news/html/20131204/k10013576321000.html

https://twitter.com/fukazume_taro/status/408586295099674625

https://twitter.com/fox_road/status/408537220044181504 https://twitter.com/fox_road/status/408537714997219328 https://twitter.com/fox_road/status/408538152156930048

https://twitter.com/researcher001/status/408572416302911488

http://gamebiz.jp/?p=124827

http://dc.watch.impress.co.jp/docs/news/20131205_626423.html

https://twitter.com/BS_dim/status/408389880327073792