%0 Journal Article
%A H. Mevissen
%A R. J. Nessel
%T On the Best Approximation of Riemann Integrable Functions by Trigonometric Polynomials
%J Mathematica balkanica
%D 1990
%P 289
%V 4
%N 3-4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MABA_1990_4_3-4_a6/
%F MABA_1990_4_3-4_a6