%0 Journal Article
%A Porubský, Štefan
%T On the density of certain sets in arithmetical semigroups
%J Czechoslovak Mathematical Journal
%D 1979
%P 148-152
%V 29
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101588/
%R 10.21136/CMJ.1979.101588
%G en
%F 10_21136_CMJ_1979_101588