TY - JOUR AU - Ya. V. Bykov AU - T. Chinkaraev TI - The periodic vibrations of nonlinear systems with resonance. III JO - Differencialʹnye uravneniâ PY - 1969 SP - 2115 EP - 2128 VL - 5 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1969_5_12_a0/ LA - ru ID - DE_1969_5_12_a0 ER -