%0 Journal Article %A A. G. Alenizyn %T Asymptotic behavior of the spectrum of a Sturm--Liouville operator in the case of a limit circle %J Differencialʹnye uravneniâ %D 1976 %P 428-437 %V 12 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_3_a2/ %G ru %F DE_1976_12_3_a2