TY  - JOUR
AU  - R. Z. Dautov
TI  - Direct and inverse theorems for the approximation of functions by algebraic polynomials and splines in the norms of the Sobolev space
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 2022
SP  - 79
EP  - 86
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_2022_6_a7/
LA  - ru
ID  - IVM_2022_6_a7
ER  -