%0 Journal Article %A Saker, S. H. %T Oscillation theorems of nonlinear difference equations of second order. %J Georgian Mathematical Journal %D 2003 %P 343-352 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/GMJ_2003__10_2_50854/ %G en %F GMJ_2003__10_2_50854