%0 Journal Article %A Barvínek, Erich %T Characterization of central dispersions of the first kind of $y'' = Q(t)y$ %J Časopis pro pěstování matematiky %D 1966 %P 125-130 %V 91 %N 2 %U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1966.108113/ %R 10.21136/CPM.1966.108113 %G en %F 10_21136_CPM_1966_108113