%0 Journal Article
%A Zhiting Xu
%T Fite and Kamenev type oscillation criteria for
 second order elliptic equations
%J Annales Polonici Mathematici
%D 2007
%P 199-214
%V 92
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap92-3-1/
%R 10.4064/ap92-3-1
%G en
%F 10_4064_ap92_3_1