| 2010-11-10 | Christian Urban | expanded the paper by uncommenting the comments and adding the appendix | file | diff | annotate |
| 2010-10-29 | Christian Urban | squeezed qpaper to 6 pages | file | diff | annotate |
| 2010-10-28 | Cezary Kaliszyk | Unanonymize qpaper | file | diff | annotate |