F. Suchanek, G. Kasneci, und G. Weikum. Proceedings of the 16th international conference on World Wide Web, Seite 697--706. New York, NY, USA, ACM, (2007)
B. Martins, H. Manguinhas, und J. Borbinha. Proceedings of the International Conference on Semantic Computing, Seite 1--9. IEEE Computer Society, (August 2008)
S. Tramp, P. Frischmuth, T. Ermilov, und S. Auer. Proceedings of the EKAW 2010 - Knowledge Engineering and Knowledge Management by the Masses; 11th October-15th October 2010 - Lisbon, Portugal, Volume 6317 von Lecture Notes in Artificial Intelligence, Seite 135--149. Berlin / Heidelberg, Springer, (Oktober 2010)