TY - JOUR AU - I. B. Erunova AU - V. Ya. Rivkind TI - Estimates for the rate of convergence of approximate methods for JO - Doklady Akademii Nauk PY - 1990 SP - 1306 EP - 1309 VL - 313 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1990_313_6_a5/ LA - ru ID - DAN_1990_313_6_a5 ER -