TY - JOUR AU - V. A. Yakubovich TI - Periodic and almost periodic limiting states of control systems with several, in general discontinuous, nonlinear terms JO - Doklady Akademii Nauk PY - 1966 SP - 533 EP - 536 VL - 171 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1966_171_3_a7/ LA - ru ID - DAN_1966_171_3_a7 ER -