http://gigazine.net/news/20150511-microsoft-stop-windows-version/

http://www.nikkansports.com/general/news/1475016.html

http://mainichi.jp/select/news/20150511k0000e040190000c.html

http://headlines.yahoo.co.jp/hl?a=20150510-00000005-at_s-l22

http://www3.nhk.or.jp/news/html/20150511/k10010075701000.html