| Thu, 09 Feb 2012 13:05:51 +0000 | urbanc | more on the specification section | file | diff | annotate |
| Wed, 08 Feb 2012 16:35:49 +0000 | urbanc | corrections by Xingyuan | file | diff | annotate |
| Tue, 07 Feb 2012 00:50:23 +0000 | urbanc | more on paper | file | diff | annotate |
| Mon, 06 Feb 2012 12:08:35 +0000 | urbanc | paper updatated | file | diff | annotate |