TY  - JOUR
AU  - A. Kh. Askarova
AU  - V. È. Ismailov
TI  - A Chebyshev-Type Theorem Characterizing Best Approximation of a Continuous Function by Elements of the Sum of Two Algebras
JO  - Matematičeskie zametki
PY  - 2021
SP  - 19
EP  - 26
VL  - 109
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2021_109_1_a1/
LA  - ru
ID  - MZM_2021_109_1_a1
ER  -