%0 Journal Article %A V. V. Belov %A O. S. Dobrokhotov %A S. Yu. Dobrokhotov %T Isotropic Tori, Complex Germ and Maslov Index, Normal Forms and Quasimodes of Multidimensional Spectral Problems %J Matematičeskie zametki %D 2001 %P 483-514 %V 69 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2001_69_4_a0/ %G ru %F MZM_2001_69_4_a0