Sun, 13 Apr 1997 19:10:27 +0200 wenzelm fixencoding - fix references to isabelle font encoding;
Sat, 12 Apr 1997 20:02:06 +0200 wenzelm tuned comments;
Sat, 12 Apr 1997 20:01:38 +0200 wenzelm misc improvement;
(0) -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip