%0 Journal Article %A Kh. Kh. Murtazin %A Ya. T. Sultanaev %T Formulas for the distribution of eigenvalues of nonsemibounded Sturm--Liouville operators %J Matematičeskie zametki %D 1980 %P 545-553 %V 28 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1980_28_4_a6/ %G ru %F MZM_1980_28_4_a6