%0 Journal Article
%A H. Musielak
%T Jackson type inequalities for averaged moduli of smoothness
%J Commentationes Mathematicae
%D 1987
%P  143-158
%V 27
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/cm.v27i1.6195/
%R 10.14708/cm.v27i1.6195
%G pl
%F 10_14708_cm_v27i1_6195