1. Zhang Zhitao,Variational, Topological and Partial Order Methods with their Applications，Springer-Verlag, 2013.
2. Zhang Zhitao, Li Shujie, On sign-changing and multiple solutions of the $p$-Laplacian. J. Funct. Anal. 197 (2003), no. 2, 447--468. (SCI)
3. E.N. Dancer, Kelei Wang, Zhitao Zhang, The limit equation for the Gross-Pitaevskii equations and S. Terracini's conjecture，J. Funct. Anal.，262 (2012) 1087–1131 (SCI)
4. Wang Kelei; Zhang Zhitao, Some new results in competing systems with many species. Ann. Inst. H. Poincaré Anal. Non Linéaire 27 (2010), no. 2, 739–761.(SCI)
5. E.N. Dancer, Kelei Wang, Zhitao Zhang, Dynamics of s trongly competing systems with many species, Transactions of American Mathematical Society, 364(2) (2012) 961-1005. (SCI)
6. Chen Jianyi, Zhang Zhitao, Infinite many periodic solutions for a semilinear wave equation in a ball in R^n, J. Differential Equations, 256(2014),1718-1734.
7. E.N. Dancer, Kelei Wang, Zhitao Zhang, Uniform Holder Estimate for Singularly Perturbed Parabolic Systems of Bose-Einstein Condensates and Competing Species, J. Differential Equations, 251 (2011) 2737–2769. (SCI)
8. Zhitao Zhang, Solutions for elliptic problems with precise sign information, 633-678， Handbook of Nonconvex Analysis and Applications, International Press, 2010.( Chapter 13)
9. Xiyou Cheng, Zhitao Zhang, Positive solutions for a multi-parameter system of second-order ordinary differential equations, Science China, Mathematics, 2011 54(5): 959–972.
10. Bartsch Thomas; Wang Zhi-Qiang; Zhang Zhitao, On the Fučik point spectrum for Schrödinger operators on R^N. J. Fixed Point Theory Appl. 5 (2009), no. 2, 305--317.
11. Zhang Zhitao; Wang Kelei, Existence and non-existence of solutions for a class of Monge-Ampère equations. J. Differential Equations 246 (2009), no. 7, 2849--2875.
12. Bartsch Thomas; Peng Shuangjie; Zhang Zhitao, Existence and non-existence of solutions to elliptic equations related to the Caffarelli-Kohn-Nirenberg inequalities. Calc. Var. Partial Differential Equations 30 (2007), no. 1, 113--136.
13. Perera Kanishka; Zhang Zhitao, Nontrivial solutions of Kirchhoff-type problems via the Yang index. J. Differential Equations 221 (2006), no. 1, 246--255.
14. Zhang Zhitao; Calanchi Marta; Ruf Bernhard, Elliptic equations in $\Bbb R^2$ with one-sided exponential growth. Commun. Contemp. Math. 6 (2004), no. 6, 947--971.
15. Zhang Zhitao; Chen Jianqing; Li Shujie, Construction of pseudo-gradient vector field and sign-changing multiple solutions involving $p$-Laplacian. J. Differential Equations 201 (2004), no. 2, 287--303.
16. Dancer E. N., Zhang Zhitao, Dynamics of Lotka-Volterra competition systems with large interaction. J. Differential Equations 182 (2002), no. 2, 470--489.
17. Zhang Zhitao; Li Xiaodong, Sign-changing solutions and multiple solutions theorems for semilinear elliptic boundary value problems with a reaction term nonzero at zero. J. Differential Equations 178 (2002), no. 2, 298--313.
18. Li Shujie; Zhang Zhitao, Fucik spectrum, sign-changing and multiple solutions for semilinear elliptic boundary value problems with jumping nonlinearities at zero and infinity. Sci. China Ser. A 44 (2001), no. 7, 856--866.
