TY - JOUR AU - P. P. Belinskii TI - On the order of approximation of quasi-conformal maps in space to conformal maps JO - Doklady Akademii Nauk PY - 1971 SP - 759 EP - 761 VL - 200 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1971_200_4_a0/ LA - ru ID - DAN_1971_200_4_a0 ER -