TY - JOUR AU - A. F. Andreev AU - V. Kuznetsov TI - A theorem on the uniqueness of the $O$-curve in $N_2$ under conditions of the type of the Osgood condition JO - Differencialʹnye uravneniâ PY - 1970 SP - 2080 EP - 2082 VL - 6 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1970_6_11_a16/ LA - ru ID - DE_1970_6_11_a16 ER -