S. Auer, и J. Lehmann. ESWC '07: Proceedings of the 4th European conference on The Semantic Web, стр. 503--517. Berlin, Heidelberg, Springer-Verlag, (2007)
S. Auer, и J. Lehmann. The Semantic Web: Research and Applications, 4th European Semantic Web Conference, ESWC 2007, Innsbruck, Austria, том 4519 из Lecture Notes in Computer Science, Springer, Berlin, (2007)
R. Baeza-Yates, и A. Tiberi. KDD '07: Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining, стр. 76--85. New York, NY, USA, ACM, (2007)
R. Baeza-Yates, и A. Tiberi. KDD '07: Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining, стр. 76--85. New York, NY, USA, ACM, (2007)