%0 Journal Article %A A. N. Kozhevnikov %T Separate asymptotics of two series of eigenvalues for a~single elliptic boundary-value problem %J Matematičeskie zametki %D 1977 %P 699-710 %V 22 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1977_22_5_a9/ %G ru %F MZM_1977_22_5_a9