L. Ollinger, D. Zühlke, A. Theorin, and C. Johnsson. Proceedings of the 18th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2013), Cagliari, Italy, (2013)
A. Dabholkar, and A. Gokhale. ICDCS '09 Workshops: Proceedings of the 29th IEEE International Conference on Distributed Computing Systems Workshops, Montreal, Canada, page 73-79. (2009)
L. Luca, B. Stephen, and D. Pierpaolo. Computational Collective Intelligence: Semantic Web, Social Networks and Multiagent Systems First International Conference, ICCCI 2009, Wroclaw, Poland, volume 5796 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (2009)