Some Extension on the Kellogg Theorem 
GE Bin-hua
Chinese Quarterly Journal of Mathematics . 2000, (2): 36 -40 . 

Copyright © Chinese Quarterly Journal of Mathematics, All Rights Reserved.
Tel: 0371-23881698　E-mail: sxjk@henu.edu.cn　QQ: 2454327236
Powered by Beijing Magtech Co., Ltd.