%0 Journal Article
%A P.L. BUTZER
%A K. SCHERER
%T On the Fundamental Approximation Theorems of D. JACKSON, S. BERNSTEIN and Theorems of M. ZAMANSKY and S. B. STECKIN (Short Communication)
%J Aequationes mathematicae
%D 1969
%P 398-398
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1969__2_182353/
%F AM2_1969__2_182353