TY - JOUR AU - P. S. Belevets AU - I. G. Kozhukh TI - A qualitative study in the large of a certain class of dynamical systems JO - Differencialʹnye uravneniâ PY - 1974 SP - 195 EP - 201 VL - 10 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1974_10_2_a1/ LA - ru ID - DE_1974_10_2_a1 ER -