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)
C. Decker, T. Riedel, M. Beigl, L. de Souza, P. Spiess, J. Müller, and S. Haller. Proceedings of the 3rd IET International Conference on Intelligent Environments (IE 07), Ulm, Germany, page 40--47. Institution of Engineering and Technology (IET), London, (2007)
C. Magerkurth, S. Haller, and P. Hagedorn. Ambient Intelligence: First International Joint Conference, AmI 2010, Málaga, Spain, volume 6439 of Lecture Notes in Computer Science, Springer, Berlin, (2010)