TY - JOUR AU - V. A. Gaukhman TI - The geometry of a second-order ordinary differential equation with respect to a conformal group of transformations in two variables JO - Doklady Akademii Nauk PY - 1961 SP - 15 EP - 18 VL - 140 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1961_140_1_a2/ LA - ru ID - DAN_1961_140_1_a2 ER -