%0 Journal Article
%A N.R. Reilly
%A S. Zhang
%T Operators and products in the lattice of existence varieties of regular semigroups.
%J Semigroup forum
%D 1996
%P 1-24
%V 53
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1996__53_2_135466/
%F SF_1996__53_2_135466