1Gruber T R. Towards principles for the design of ontologies used for knowledge sharing. International Journal of Human-Computer Studies, 1995,43(6):907-928
2Ontology creation and use: SENSUS.[2006-05-10].http://www.isi.edu/natural-language/resources/sensus.html
4Knight K, Steve K L. Building a large-scale knowledge base for machine translation.[2006-04-11].http://arxiv.org/abs/cmp-lg/9407029
5Mahesh K, Sergei Nirenburg, Jim Cowie et al. An assessment of cyc for natural language processing.[2006-03-04].http://ilit.umbc.edu/SergeiPub/AnAssesmntOfCyc.pdf
6Beale S. Semantic analysis in the mikrokosmos machine translation project.[2006-04-11].http://ilit.umbc.edu/SergeiPub/SemantAnalysis.pdf
7Mahesh K. Ontology development for machine translation:ideology and methodology.[2006-04-11].http://www.fdi.ucm.es/profesor/vaquero/DOCT/MikroKosmosOnto (MCCS-96-292).pdf
8Goomez-Perez A, Coreho O. Asuncion. Ontological Engineering.Berlin: Springer, 2004.107-196