Wed, 10 Nov 2010 11:49:45 +0000 urbanc added my slides
Mon, 08 Nov 2010 01:13:09 +0000 urbanc slight tuning of proof by Chunhan
Sat, 06 Nov 2010 23:31:53 +0000 wu the ALT case is done;
(0) -10 -3 +3 +10 +30 +100 +300 tip