%0 Journal Article
%A Polák, L.
%T Oscillation and nonoscillation criteria for two-dimensional systems of linear ordinary differential equations.
%J Georgian Mathematical Journal
%D 2004
%P 137-154
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/GMJ_2004__11_1_51354/
%G en
%F GMJ_2004__11_1_51354