TY - JOUR AU - Xianhua Tang AU - Jianhua Shen TI - New oscillation criteria for first order nonlinear delay differential equations JO - Colloquium Mathematicum PY - 2000 SP - 21 EP - 41 VL - 83 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-83-1-21-41/ DO - 10.4064/cm-83-1-21-41 LA - en ID - 10_4064_cm_83_1_21_41 ER -