TY - JOUR AU - P. P. Veresovich TI - Nonstationary singularities of a system of three differential equations JO - Differencialʹnye uravneniâ PY - 1978 SP - 2257 EP - 2259 VL - 14 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1978_14_12_a18/ LA - ru ID - DE_1978_14_12_a18 ER -