TY - JOUR AU - V. A. Pliss TI - The phenomenon of convergence in non-linear periodic systems JO - Doklady Akademii Nauk PY - 1961 SP - 301 EP - 304 VL - 138 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1961_138_2_a13/ LA - ru ID - DAN_1961_138_2_a13 ER -