22 Mar
2002
22 Mar
'02
2:19 p.m.
Well, it _did_ happen, but was then retracted immediately. Please forget it, and sorry about the noise. Best Roberto -- Prof. Roberto Bagnara Computer Science Group Department of Mathematics, University of Parma, Italy http://www.cs.unipr.it/~bagnara/ mailto:bagnara@cs.unipr.it