| Wed, 12 Oct 2011 15:10:54 -0700 | Kevin Walker | operad action only up to homotopy; still need to think about this a bit | 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 13:50:06 -0600 | Kevin Walker | minor ref rpt stuff | file | diff | annotate |
| Sat, 16 Jul 2011 11:39:58 -0600 | Kevin Walker | typos from ref rpt | file | diff | annotate |