| Thu, 27 Nov 1997 19:39:02 +0100 | several minor updates; | file | diff | annotate |
| Tue, 06 May 1997 12:50:16 +0200 | misc updates, tuning, cleanup; | file | diff | annotate |
| Thu, 11 May 1995 10:38:30 +0200 | Indexing of FILTER and COND | file | diff | annotate |
| Fri, 22 Apr 1994 18:18:37 +0200 | final Springer copy | file | diff | annotate |
| Fri, 15 Apr 1994 17:16:23 +0200 | penultimate Springer draft | file | diff | annotate |
| Mon, 21 Mar 1994 11:02:57 +0100 | first draft of Springer book | file | diff | annotate |
| Wed, 10 Nov 1993 05:00:57 +0100 | Initial revision | file | diff | annotate |