TY - JOUR AU - È. Muhamadiev TI - Construction of a correct guiding function for a system of differential equations JO - Doklady Akademii Nauk PY - 1970 SP - 777 EP - 779 VL - 190 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_190_4_a9/ LA - ru ID - DAN_1970_190_4_a9 ER -