%0 Journal Article
%A T. O. Kononovich
%T The lower bounds estimate of the best approximation with a trigonometric polynomials of a summarized functions of two variables
%J Žurnal matematičeskoj fiziki, analiza, geometrii
%D 2002
%P 478-486
%V 9
%N 3
%U http://geodesic.mathdoc.fr/item/JMAG_2002_9_3_a15/
%G ru
%F JMAG_2002_9_3_a15