1. Alonso-Jimenez, J.A., Borrego-Diaz, J., Chavez-Gonzalez, A.M., Martin-Mateos, F.J.: Foundational Challenges in Automated Semantic Web Data and Ontology Cleaning. IEEE Intelligent Systems 21(1), 42–52 (2006)
2. Berners-Lee, T., Hendler, J., Lassila, O.: The Semantic Web. Sci. American, Singapore (May 2001)
3. Lecture Notes in Computer Science;J. Borrego-Díaz,2006
4. Lecture Notes in Artificial Intelligence;J. Borrego-Díaz,2008
5. Cohn, A.G., Bennett, B., Gooday, J.M., Gotts, N.M.: Representing and Reasoning with Qualitative Spatial Relations about Regions. In: Stock, O. (ed.) Spatial and Temporal Reasoning. Kluwer, Dordrecth (1997)