| Sun, 11 Oct 2009 22:45:29 +0200 | Christian Urban | polished first chapter | file | diff | annotate |
| Wed, 07 Oct 2009 11:28:40 +0200 | Christian Urban | reorganised the certified terms section; tuned | file | diff | annotate |
| Sat, 03 Oct 2009 19:10:23 +0200 | Christian Urban | more work | file | diff | annotate |