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J. Angele, and M. Gesmann. Proceedings of the Second International Conference on Rules and Rule Markup Languages for the Semantic Web, Athens, GA, USA, page 58-66. (2006)
J. Angele, and M. Gesmann. The Semantic Web: Real-World Applications from Industry, volume 6 of Semantic Web and Beyond: Computing for Human Experience, Springer, (2007)