http://www.cnblogs.com/end/archive/2011/10/19/2217244.html
http://www.csdn.net/article/2011-09-26/304960
http://tech.it168.com/a2011/1207/1285/000001285268.shtml
http://www.csdn.net/article/2012-04-28/2805206
http://labs.chinamobile.com/news/64466
http://www.ccw.com.cn/article/view/50368