Yeh, C.C. (1989) Oscillation Theorems for Second Order Nonlinear Perturbed Differentional Equations. Journal of Mathematical Analysis and Applications, 138, 157-165.
http://dx.doi.org/10.1016/0022-247X(89)90326-0

has been cited by the following article:

• TITLE: New Oscillation Criteria for the Second Order Nonlinear Differential Equations with Damping

  AUTHORS: Quanxin Zhang, Xia Song, Shouhua Liu

  KEYWORDS: Oscillation Criterion, Differential Equations with Damping, Integral Averaging Method

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.4 No.7, June 30, 2016

  ABSTRACT: In this paper, we are concerned with a class of second-order nonlinear differential equations with damping term. By using the generalized Riccati technique and the integral averaging technique of Philos-type, two new oscillation criteria are obtained for every solution of the equations to be oscillatory, which extend and improve some known results in the literature recently.