TY - JOUR AU - Yu. M. Aponin TI - Asymptotic estimate of the error in the calculation of the separatrix of a system of two ordinary differential equations JO - Differencialʹnye uravneniâ PY - 1980 SP - 579 EP - 588 VL - 16 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1980_16_4_a0/ LA - ru ID - DE_1980_16_4_a0 ER -