TY - JOUR AU - M. M. Kobilzoda AU - A. N. Naimov TI - On the positive solutions of a model system of nonlinear ordinary differential equations JO - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics PY - 2020 SP - 161 EP - 171 VL - 20 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ISU_2020_20_2_a2/ LA - ru ID - ISU_2020_20_2_a2 ER -