TY - JOUR AU - O. V. Kholostova TI - On multiple fourth-order resonances in a nonautonomous two-degree-of-freedom Hamiltonian system JO - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki PY - 2019 SP - 275 EP - 294 VL - 29 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VUU_2019_29_2_a9/ LA - ru ID - VUU_2019_29_2_a9 ER -