TY - JOUR AU - O. V. Aleksandrova TI - On an estimate for the oscillations of persistently perturbed systems JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1994 SP - 54 EP - 58 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1994_5_a12/ LA - ru ID - VMUMM_1994_5_a12 ER -