%0 Journal Article
%A J. Popenda
%T Finite difference inequalities
%J Commentationes Mathematicae
%D 1986
%P  89-96
%V 26
%N 1
%U http://geodesic.mathdoc.fr/articles/10.14708/cm.v26i1.6155/
%R 10.14708/cm.v26i1.6155
%G pl
%F 10_14708_cm_v26i1_6155