%0 Journal Article
%A Pondělíček, Bedřich
%T A certain equivalence on a semigroup
%J Czechoslovak Mathematical Journal
%D 1971
%P 109-117
%V 21
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101006/
%R 10.21136/CMJ.1971.101006
%G en
%F 10_21136_CMJ_1971_101006