Articles in Scholarly Journals [Incomplete List]

1. Multiple periodic solutions for discrete Hamiltonian systems?
   Nonlinear Analysis, vol. 66, no. 7, pp. 1498–1512, 2007
2. Convergence and periodicity of solutions for a class of difference systems
   Advances in Difference Equations, vol. 2006, Article ID 70461, 10 pages, 2006
3. Nontrivial periodic solutions for asymptotically linear resonant difference problem?
   Journal of Mathematical Analysis and Applications, vol. 322, no. 1, pp. 477–488, 2006
4. Behavior of solutions for a class of difference systems
   Applied Mathematics-A Journal of Chinese Universities, vol. 19, no. 4, pp. 390–398, 2004