%0 Journal Article %A Regenda, Ján %T Oscillation criteria for fourth-order linear differential equations %J Mathematica slovaca %D 1979 %P 3-16 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1979__29_1_a0/ %G en %F MASLO_1979__29_1_a0