原文:
http://queue.acm.org/detail.cfm?id=2510122
译文:
http://www.w3cfuns.com/forum.php?mod=viewthread&tid=5598398
http://www.w3cfuns.com/forum.php?mod=viewthread&tid=5596320&reltid=5598398&pre_thread_id=0&pre_pos=10&ext=
http://blog.jobbole.com/46599/
http://mobile.51cto.com/web-408358.htm