海量图书期刊资源，随时随地畅享阅读乐趣
Classification of nonoscillatory solutions of higher order nonlinear difference equationsBi Ping; Qiaoluan Li; Zhenguo Zhang; Wenlei Dong · 2001
Oscillatory behavior of the second-order nonlinear neutral difference equationsZhenguo Zhang; Wenlei Dong; Bi Ping · 2001