%0 Journal Article %A A. I. Neishtadt %T Passage through a resonance in the two-frequency problem %J Doklady Akademii Nauk %D 1975 %P 301-304 %V 221 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_221_2_a10/ %G ru %F DAN_1975_221_2_a10