| Mon, 03 Aug 2009 14:01:57 +0200 | Christian Urban | replaced "writeln" with "tracing" | file | diff | annotate |
| Tue, 14 Jul 2009 16:34:24 +0200 | Christian Urban | minor tuning | file | diff | annotate |
| Fri, 05 Jun 2009 04:17:28 +0200 | Christian Urban | updated to lates Isabelle changes | file | diff | annotate |