P. Eklund, and P. Deer. Proceedings of the 9th Int. Conf. on Information Processing and Management of Uncertainty (IPMU 2002), page 187-194. ESIA - Universite Savoie, (2002)presentation slides.
S. Dasiopoulou, I. Kompatsiaris, and M. Strintzis. Semantic Multimedia, Third International Conference on Semantic and Digital Media Technologies, SAMT 2008, Koblenz, Germany, page 31-46. (2008)