TY  - JOUR
AU  - S. M. Nikol'skii
AU  - P. I. Lizorkin
TI  - Approximation of functions by spherical polynomials in the metric $L_p$
JO  - Doklady Akademii Nauk
PY  - 1986
SP  - 285
EP  - 289
VL  - 289
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1986_289_2_a5/
LA  - ru
ID  - DAN_1986_289_2_a5
ER  -