TY - JOUR AU - N. I. Gavrilov TI - Letter to the editors: “On the stability of solutions of a class of Hamiltonian systems with small changes of the function $H$” [Differentsial'nye Uravneniya 18 (1982), no. 2, 219–234; MR 83j:58047] JO - Differencialʹnye uravneniâ PY - 1983 SP - 729 VL - 19 IS - 4 UR - http://geodesic.mathdoc.fr/item/DE_1983_19_4_a33/ LA - ru ID - DE_1983_19_4_a33 ER -