%0 Journal Article
%A K. I. Babenko
%A N. S. Bakhvalov
%A V. M. Tikhomirov
%A V. B. Demidovich
%T School-Seminar ``Approximation Theory and Problems of Calculus Mathematics''
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1987
%V 42
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1987_42_4_a21/
%G ru
%F RM_1987_42_4_a21