1. Barnard, R. W., FitzGerald, G. H., Gong, S., The growth and 1/4 theorems for starlike mappings in Cn,Chin.Sci. Bull., 1989. 34:161.
2. Gong Sheng, Biholomorphic mappings in several complex variables,Contemp. Math., 1993, 142:15.
3. Gong Sheng.Convex and Starlike Mappings in Several Complex Variables, Monographs on Pure and Applied Math. No. 34 (in Chinese), Beijing: Science Press, 1995.
4. Barnard, R. W., FitzGerald, C. H., Gong, S., A distortion theorem for biholomorphic mappings in C2,Trans. Amer. Math. Soc., 1994, 344:902.
5. Gong Sheng, Wang Shikun, Yu Qihuang, Biholomorphic mappings of ball in C,Pacific J. Math., 1993, 161:2287.