%0 Journal Article %A A. Yu. Popov %T On the number of real eigenvalues of a~certain boundary-value problem for a~second-order equation with fractional derivative %J Fundamentalʹnaâ i prikladnaâ matematika %D 2006 %P 137-155 %V 12 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2006_12_6_a8/ %G ru %F FPM_2006_12_6_a8