%0 Journal Article %A V. M. Budanov %A L. F. Davudova %T The Mathieu equation near the boundaries of the second and third resonance zones %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2021 %P 27-34 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2021_6_a4/ %G ru %F VMUMM_2021_6_a4