TY - JOUR AU - E. Sh. Chatskaya TI - Some approximation problems on sets in the complex plane JO - Doklady Akademii Nauk PY - 1965 SP - 30 EP - 32 VL - 162 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1965_162_1_a5/ LA - ru ID - DAN_1965_162_1_a5 ER -