%0 Journal Article %A G. A. Aigunov %T Asymptotic behavior of the normalized eigenfunctions of an operator of Sturm--Liouville type for partial differential equations in an $N$-dimensional ball %J Matematičeskie zametki %D 1999 %P 622-625 %V 65 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1999_65_4_a15/ %G ru %F MZM_1999_65_4_a15