%0 Journal Article
%A V. P. Motornyi
%A O. V. Motornaya
%T On the best $L_1$-approximation by algebraic polynomials to truncated powers and to classes of functions with $L_1$-bounded derivative
%J Izvestiya. Mathematics 
%D 1999
%P 561-582
%V 63
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1999_63_3_a5/
%G en
%F IM2_1999_63_3_a5