TY  - JOUR
AU  - S. A. Stasyuk
TI  - Approximation of certain smoothness classes of periodic functions of several variables by polynomials with regard to the tensor Haar system
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2015
SP  - 251
EP  - 260
VL  - 21
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TIMM_2015_21_4_a22/
LA  - ru
ID  - TIMM_2015_21_4_a22
ER  -