带阻尼的二阶半线性脉冲微分方程的振动准则
陈星荣, 潘立军
Oscillation Criteria for Second-order Half-linear Impulsive Differential Equations with Damping 
CHEN Xing-rong, PAN Li-jun
数学季刊 . 2009, (4): 614 -620 .