%0 Journal Article %A V. Ya. Ivrii %T Exact spectral asymptotics for the Laplace--Beltrami operator in the case of general elliptic boundary conditions %J Funkcionalʹnyj analiz i ego priloženiâ %D 1981 %P 74-75 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1981_15_1_a9/ %G ru %F FAA_1981_15_1_a9