| Wed, 17 Aug 2011 07:43:09 +0000 | urbanc | a little tuning | file | diff | annotate |
| Mon, 15 Aug 2011 21:09:08 +0000 | urbanc | polishing of the closure section and conclusion | file | diff | annotate |
| Fri, 05 Aug 2011 05:34:11 +0000 | urbanc | more on the derivatives section | file | diff | annotate |
| Wed, 03 Aug 2011 17:08:31 +0000 | urbanc | added more to the derivatives section | file | diff | annotate |