TY - JOUR AU - V. V. Kozlov TI - Averaging in the neighborhood of stable periodic motions JO - Doklady Akademii Nauk PY - 1982 SP - 567 EP - 570 VL - 264 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1982_264_3_a11/ LA - ru ID - DAN_1982_264_3_a11 ER -