Topics in Electronic Commerce Second International Symposium, ISEC 2001 Hong Kong, China, April 26-28, 2001 Proceedings - Kou, Weidong; Kou, Weidong; Yesha, Yelena; Yesha, Yelena; Tan, Chung J.; Tan, Chung J. (Springer Berlin Heidelberg : Imprint: Springer, 2001)