| Tue, 28 Jul 2009 12:11:33 +0200 | Christian Urban | slightly changed exercises about rev_sum | file | diff | annotate |
| Sat, 30 May 2009 23:58:05 +0200 | Christian Urban | corrected index references and minor polishing | file | diff | annotate |
| Sat, 30 May 2009 17:40:20 +0200 | Christian Urban | added some first index-information | file | diff | annotate |