S. Auer, and J. Lehmann. The Semantic Web: Research and Applications, 4th European Semantic Web Conference, ESWC 2007, Innsbruck, Austria, volume 4519 of Lecture Notes in Computer Science, Springer, Berlin, (2007)
S. Auer, J. Lehmann, A. Ngomo, and A. Zaveri. Reasoning Web: Semantic Technologies for Intelligent Data Access, volume 8067 of Lecture Notes in Computer Science, Springer, Heidelberg, (2013)