Cross-posted: CSINFO-L, net Vice viz www.rsa.com. Dekuji vsem, co se pripojili. Dan Dan Lukes, Patkova 3/B1206, Praha 8, Czech Republic tel +420-(2)-8551040 ext 776, E-Mail: dan at obluda.kolej.mff.cuni.cz, aka: LUKES(or Postmaster)@Menza.MFF.CUNI.CZ and others