%0 Journal Article %A S. S. Krickaya %T Asymptotic formulae for the eigenvalues and eigenfunctions of a Sturm--Liouville type problem %J Differencialʹnye uravneniâ %D 1969 %P 967-970 %V 5 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1969_5_5_a21/ %G ru %F DE_1969_5_5_a21