| Tue, 09 Aug 2011 23:55:13 -0700 | Scott Morrison | relentless adding 'disk-like' everywhere it could possibly go | file | diff | annotate |
| Sat, 16 Jul 2011 11:39:58 -0600 | Kevin Walker | typos from ref rpt | file | diff | annotate |
| Fri, 15 Jul 2011 15:03:22 -0700 | Scott Morrison | several minor corrections, from referee | file | diff | annotate |
| Wed, 01 Jun 2011 15:17:39 -0600 | Kevin Walker | added remark on super algebra | file | diff | annotate |