R. Farrell, S. Liburd, и J. Thomas. Proceedings of the 13th international World Wide Web conference on
Alternate track papers & posters, стр. 162--169. New York, NY, USA, ACM, (2004)
S. Dietze, H. Yu, D. Giordano, E. Kaldoudi, N. Dovrolis, и D. Taibi. Proceedings of the 27th Annual ACM Symposium on Applied Computing
(SAC-2012), Speical Track on Semantic Web and Applications, стр. 25-29. Trento, Italy, (марта 2012)
P. Dolog, and Peter Dolog, и M. Schäfer. In Proc. of PerSWeb-2005 Workshop: Personalisation on the Semantic Web at User Modelling 2005: 10th International Conference, стр. 2005. (2005)