Oscillation criteria of second order nonlinear neutral differential equations with damping terms(具阻尼项的二阶非线性中立型微分方程的振动准则) by 曾云辉(ZENG Yunhui), 孙文杰(SUN Wenjie), 罗李平(LUO Liping), 俞元洪(YU Yuanhong)

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