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3. [Ber+04]_Bernstein, A.; Kaufmann, E.; Bürki, C; Klein, M.: Object Similarity in Ontologies: A Foundation for Business Intelligence Systems and High-performance Retrieval. Twenty-Fifth International Conference on Information Systems. Washington, DC, 2004: pp. 11–25.
4. [Blo+02]_Blok, S.; Medin, D.; Osherson, D.: Probability from Similarity. AAAI Conference on Commonsense Reasoning. AAAI Press: Stanford, CA, 2002.
5. Brin, S.; Page, L.: The Anatomy of a Large-Scale Hypertextual Web Search Engine. Seventh International World Wide Web Conference. ACM-Press: Brisbane, Australia, 1998.