Publication
In: Vic Callaghan, Achilles Kameas, Angélica Reyes, Dolors Royo, Michael Weber (editor). Proceedings of the 5th International Conference on Intelligent Environments. International Conference on Intelligent Environments (IE-09) July 20-21 Barcelona Spain Pages 295-302 Ambient Intelligence and Smart Environments 2 ISBN 978-1-60750-034-6 IOS Press 2009.