| Fri, 18 Nov 2011 13:17:36 -0800 | Scott Morrison | adding last label to the 'gadgets' figure, as requested by referee | file | diff | annotate |
| Fri, 18 Nov 2011 13:06:49 -0800 | Scott Morrison | adding figures for pinched products | file | diff | annotate |
| Sun, 23 Oct 2011 16:20:25 -0600 | Kevin Walker | small item from ref rpt | file | diff | annotate |
| Fri, 14 Oct 2011 08:35:15 -0700 | Kevin Walker | added some 'disk-like's in intro; other minor changes in intro; broke some lines | file | diff | annotate |