%0 Journal Article %A I. T. Kiguradze %A B. L. Shekhter %T Singular boundary value problems for second-order ordinary differential equations %J Itogi Nauki i Tekhniki. Seriya Sovremennye Problemy Matematiki. Noveishie Dostizheniya %D 1987 %P 105-201 %V 30 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTD_1987_30_a1/ %G ru %F INTD_1987_30_a1