%0 Journal Article %A A. D. Krakhnov %T Asymptotic behavior of the eigenvalues of pseudodifferential operators, and invariant tori %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1976 %V 31 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1976_31_3_a15/ %G ru %F RM_1976_31_3_a15