[1]杨学功.本体论源流考(古代、中世纪部分).人文艺术(第2辑).贵州人民出版社,2000. [2]Guha R V,D B Lenat,K Pittman et al.Cyc:A Midterm Report.Communications of the ACM 33,1990(80). [3]R Neches et al.,1991,Enabling technology for knowledge sharing.AI Magazine 12(3): 36-56. [4]T R Gruber.A translation approach to portable ontology specification.Knowledge Acquisition 5(2): 199-220. [5]W N Borst.Construction of engineering ontologies.Centre for Telematica and Information Technology,University of Tweenty.Enschede,The Netherlands. [6]R Studer et al.Knowledge Engineering: Principles and Methods.IEEE Transactions on Data and Knowledge Engineering 25(1-2): 161-197. [7]Gruber T R.Towards Principles for the Design of Ontologies Used for Knowledge Sharing.International Journal of Human-Computer Studies.1995(43):907-928. [8]邓志鸿,唐世渭,张铭,等.Ontology研究综述.北京大学学报(自然科学版),38(5). [9]Ontolingua.http://www.ksl.stanford.edu/software/ontoling-ua/. [10]CycL.http://www.eye.com/tech.html # cycl. [11]http://www.transwiki.org/cn/owloverview.htm.