Mon, 13 Feb 2012 10:57:47 +0000 urbanc merged Xingyuan's changes
Mon, 13 Feb 2012 10:44:42 +0000 urbanc polished
Mon, 13 Feb 2012 05:41:53 +0000 urbanc more on the paper
(0) -300 -100 -30 -10 -3 +3 +10 +30 tip