Dieter Fensel Deborah L. McGuinness Ellen Schulten Wee Keong Ng Ee-Peng Lim Guanghao Yan Ontologies and Electronic Commerce. 8-14 2001 16 IEEE Intelligent Systems 1 http://csdl2.computer.org/dl/mags/ex/2001/01/x1008.htm db/journals/expert/expert16.html#X01a