Li, J., Luo, J. and Wang, Z. (2014) Periodic Solutions of Second Order Impulsive Differential Equations at Resonance via Variational Approach. Mathematical Modelling and Analysis, 19, 664-675.
http://dx.doi.org/10.3846/13926292.2014.980864

has been cited by the following article:

• TITLE: Periodic Solutions of a Class of Second-Order Differential Equation

  AUTHORS: Zeyneb Bouderbala, Jaume Llibre, Amar Makhlouf

  KEYWORDS: Periodic Solution, Differential Equation, Averaging Theory

  JOURNAL NAME: Applied Mathematics, Vol.7 No.3, February 29, 2016

  ABSTRACT: We study the periodic solutions of the second-order differential equations of the form where the functions, , and are periodic of period in the variable t.