%0 Journal Article %A Li, Tongxing %T Comparison theorems for second-order neutral differential equations of mixed type %J Electronic Journal of Differential Equations %D 2010 %V 2010 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a296/ %G en %F EJDE_2010__2010__a296