TY  - JOUR
AU  - G. N. Kazimirov
TI  - Direct and inverse theorems of approximation theory for the generalized modulus of smoothness of some class of functions
JO  - Problemy fiziki, matematiki i tehniki
PY  - 2021
SP  - 92
EP  - 94
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PFMT_2021_4_a14/
LA  - ru
ID  - PFMT_2021_4_a14
ER  -