| 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 |
| Wed, 27 Jul 2011 15:29:39 +0000 | urbanc | latest version of the journal paper | file | diff | annotate |
| Wed, 27 Jul 2011 12:32:28 +0000 | urbanc | polished the introduction | file | diff | annotate |