%0 Journal Article %A Xianhua Tang %A Jianhua Shen %T New oscillation criteria for first order nonlinear delay differential equations %J Colloquium Mathematicum %D 2000 %P 21-41 %V 83 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-83-1-21-41/ %R 10.4064/cm-83-1-21-41 %G en %F 10_4064_cm_83_1_21_41