Fri, 04 Jun 2021 21:46:14 +0200 wenzelm no comment --- topological order appears to be fine since 04-Mar-2013;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 tip