%0 Journal Article
%A A. Kh. Askarova
%A V. È. Ismailov
%T A Chebyshev-Type Theorem Characterizing Best Approximation of a Continuous Function by Elements of the Sum of Two Algebras
%J Matematičeskie zametki
%D 2021
%P 19-26
%V 109
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2021_109_1_a1/
%G ru
%F MZM_2021_109_1_a1