TY - JOUR AU - V. V. Filippov TI - On the existence and properties of solutions of ordinary JO - Doklady Akademii Nauk PY - 1995 SP - 160 EP - 162 VL - 343 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1995_343_2_a3/ LA - ru ID - DAN_1995_343_2_a3 ER -