| Tue, 17 Aug 2010 14:19:12 +0200 | haftmann | reworked section on simple datatype refinement | file | diff | annotate |
| Tue, 17 Aug 2010 12:30:31 +0200 | haftmann | added section on program refinement | file | diff | annotate |
| Mon, 16 Aug 2010 10:32:14 +0200 | haftmann | adaptation to new outline | file | diff | annotate |