TY - JOUR AU - E. M. Chirka TI - Approximation by polynomials on star-shaped subsets of $C_n$ JO - Matematičeskie zametki PY - 1973 SP - 55 EP - 60 VL - 14 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1973_14_1_a6/ LA - ru ID - MZM_1973_14_1_a6 ER -