%0 Journal Article
%A Šlapal, Josef
%T On the direct power of relational systems
%J Mathematica slovaca
%D 1989
%P 251-255
%V 39
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MASLO_1989__39_3_a3/
%G en
%F MASLO_1989__39_3_a3