1. Chew, S and Zheng, Q, Integral GLobal Optimization: Theory, Implementation and Applications, Lecture Notes in Econ. Math. Sys., 298, Springer-Verlag, 1988.
2. Shi, S. Zheng, Q. and Zhuang, D. Discontinuous robust mappings are approximatable, to appear.
3. Shi, S. Zheng, Q. and Zhuang, D. Set-valued robust mappings and approximatable mappings, to appear.
4. Zheng, Q. Robust analysis and global minimization of a class of discontinuous functions (I), Acta Mathematicae Applicatae Sinica (English Series), 6 (1990), 205–223.
5. Zheng, Quan, Robust analysis and global minimization of a class of discontinuous functions (II), Acta Mathematicae Applicatae Sinica (English Series), 6 (1990), 317–337.