TY  - JOUR
AU  - V. A. Opershtein
TI  - A constructive characterization of the spaces $B_{pq}^\psi[-1,1]$ by means of approximations by algebraic polynomials
JO  - Doklady Akademii Nauk
PY  - 1990
SP  - 542
EP  - 545
VL  - 310
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1990_310_3_a6/
LA  - ru
ID  - DAN_1990_310_3_a6
ER  -