| Wed, 22 Feb 2012 13:25:49 +0000 | urbanc | partially updated conference paper; slightly tuned journal paper | file | diff | annotate |
| Thu, 08 Sep 2011 15:08:02 +0000 | urbanc | one more itteration on the paper | file | diff | annotate |
| Wed, 07 Sep 2011 09:28:13 +0000 | urbanc | polished a bit the journal paper | file | diff | annotate |