%0 Journal Article
%A Petrich, Mario
%T On sandwich sets and congruences on regular semigroups
%J Czechoslovak Mathematical Journal
%D 2006
%P 27-46
%V 56
%N 1
%I mathdoc
%U https://geodesic-test.mathdoc.fr/item/CMJ_2006__56_1_a3/
%G en
%F CMJ_2006__56_1_a3