TY - JOUR AU - S. M. Nikol'skii TI - Some manifolds and the approximation on them by polynomials in the JO - Doklady Akademii Nauk PY - 1996 SP - 157 EP - 159 VL - 347 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1996_347_2_a2/ LA - ru ID - DAN_1996_347_2_a2 ER -