%0 Journal Article %A Došlý, Ondřej %T On some problems in the oscillation theory of self-adjoint linear differential equations %J Mathematica slovaca %D 1991 %P 101-111 %V 41 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1991__41_1_a12/ %G en %F MASLO_1991__41_1_a12