%0 Journal Article %A BartuĊĦek, Miroslav %T Note on the theory of dispersions of the differential equation $y''=q(t)y$ %J Archivum mathematicum %D 1973 %P 99-104 %V 9 %N 3 %U http://geodesic.mathdoc.fr/item/ARM_1973_9_3_a0/ %G en %F ARM_1973_9_3_a0