Sat, 18 Sep 2010 06:09:43 +0800 Christian Urban updated to Isabelle Sept 16
Sat, 18 Sep 2010 05:13:42 +0800 Christian Urban updated to Isabelle Sept 13
Sun, 12 Sep 2010 22:46:40 +0800 Christian Urban tuned code
Sat, 11 Sep 2010 05:56:49 +0800 Christian Urban tuned (to conform with indentation policy of Markus)
(0) -1000 -300 -100 -30 -10 -4 +4 +10 +30 +100 +300 tip