| Mon, 26 Sep 2011 16:33:54 -0600 | Kevin Walker | straighten out 1-cat vs system of fields in Section 4, per referee | file | diff | annotate |
| Thu, 11 Aug 2011 22:14:11 -0600 | Kevin Walker | last remaining items from referee's typo/minor list | file | diff | annotate |
| Thu, 11 Aug 2011 13:54:38 -0700 | Scott Morrison | finishing most of the minor/typo issues from the referee | file | diff | annotate |
| Thu, 11 Aug 2011 13:23:33 -0700 | Scott Morrison | fixing typos | file | diff | annotate |
| Sun, 08 May 2011 22:08:47 -0700 | Kevin Walker | move figs to top of page | file | diff | annotate |
| Thu, 23 Sep 2010 13:08:25 -0700 | Kevin Walker | added abstract; other misc minor stuff | file | diff | annotate |
| Tue, 21 Sep 2010 17:28:14 -0700 | Scott Morrison | remaining changes from tuesday afternoon | file | diff | annotate |