TY - JOUR AU - N. S. Kolesnikova AU - N. A. Lukashevich TI - Sufficient conditions for the existence of solutions with stationary critical singular points for first order equations JO - Differencialʹnye uravneniâ PY - 1972 SP - 1753 EP - 1760 VL - 8 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1972_8_10_a3/ LA - ru ID - DE_1972_8_10_a3 ER -