%0 Journal Article
%A Hałkowska, Katarzyna
%T On some operator defined on equational classes of algebras
%J Archivum mathematicum
%D 1976
%P 209-212
%V 12
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ARM_1976__12_4_a4/
%G en
%F ARM_1976__12_4_a4