TY - JOUR AU - A. F. Timan TI - A geometric problem in the theory of approximations JO - Doklady Akademii Nauk PY - 1961 SP - 307 EP - 310 VL - 140 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1961_140_2_a8/ LA - ru ID - DAN_1961_140_2_a8 ER -