Weighted pseudo almost periodic solutions for functional differential equations. Zhang, Liuwei; Xu, Yuantong — 2007 Electronic Journal of Differential Equations (EJDE) [electronic only]
Existence of periodic solutions for a class of even order differential equations with deviating argument. Guo, Chengjun; O'Regan, D.; Xu, Yuantong; Agarwal, R.P. — 2009 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]