S. Tramp, P. Frischmuth, T. Ermilov, и S. Auer. Proceedings of the EKAW 2010 - Knowledge Engineering and Knowledge Management by the Masses; 11th October-15th October 2010 - Lisbon, Portugal, том 6317 из Lecture Notes in Artificial Intelligence, стр. 135--149. Berlin / Heidelberg, Springer, (октября 2010)
Z. Sun, D. Dong, и J. Han. New Trends in Information and Service Science, 2009. NISS '09. International Conference on, стр. 8 -14. (30 2009-july 2 2009)