%0 Journal Article
%A R. Z. Dautov
%T Theorems on direct and inverse approximation by algebraic polynomials and piecewise polynomials in the spaces $H^m(a, b)$ and $B^s_{2,q}(a, b)$
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 2024
%P 14-34
%N 1
%U http://geodesic.mathdoc.fr/item/IVM_2024_1_a1/
%G ru
%F IVM_2024_1_a1