TY - JOUR AU - I. A. Konoplyanik TI - Third order systems without critical movable singular points JO - Differencialʹnye uravneniâ PY - 1973 SP - 2251 EP - 2254 VL - 9 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1973_9_12_a19/ LA - ru ID - DE_1973_9_12_a19 ER -