Chen, Zhi Hua et Liu, Yang, Schwarz-Pick estimates for bounded holomorphic functions in the unit ball of .n, Acta mathematica Sinica. English series (Print) , 26(5), 2010, pp. 901-908
We give a Schwarz-Pick estimate for bounded holomorphic functions on unit ball in .n, and generalize some early work of Schwarz-Pick estimates for bounded holomorphic functions on unit disk in .