1R Neches,R E Fikes,T Finin et al.Enabling technology for knowledge sharing[J].AI Magzine, 1991 ; 12(3) :36-56.
2M Fernandez, Lopez.Overview of methodologies for building ontologies [C].In:Proceodings of the IJCAI-99 workshop on ontologies and prohlem-solving methods(KRRS) ,Stockholm,Sweden, 1999.
3A G Pérez,V R Benjamins.Overview of knowledge sharing and reuse components :ontologies and problem-solving Methods[C].In :Proceedings of the IJCAI-99 workshop on Ontologies and Problem-Solving Methods(KRR5 ),Stockholm,Sweden, 1999.