%0 Journal Article
%A A. Yu. Petrovich
%T Riemann sums for functions that are expanded in trigonometric series
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1974
%P 70-72
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1974_12_a12/
%G ru
%F IVM_1974_12_a12