TY - JOUR AU - V. V. Filippov TI - Stationary points and some geometric properties of solutions of JO - Doklady Akademii Nauk PY - 1992 SP - 1043 EP - 1047 VL - 323 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1992_323_6_a10/ LA - ru ID - DAN_1992_323_6_a10 ER -