%0 Journal Article
%A T. Rumak
%T Some theorems about difference inequalities
%J Commentationes Mathematicae
%D 1972
%P  159-164
%V 16
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/cm.v16i1.5734/
%R 10.14708/cm.v16i1.5734
%G pl
%F 10_14708_cm_v16i1_5734