%0 Journal Article %A F. S. Rofe-Beketov %A E. Kh. Khristov %T Certain analytical questions and the inverse Sturm--Liouville problem for an equation with highly singular potential %J Doklady Akademii Nauk %D 1969 %P 768-771 %V 185 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_185_4_a9/ %G ru %F DAN_1969_185_4_a9