Emile H. L. Aarts, René Collier, Evert van Loenen, Boris E. R. de Ruyter: Ambient Intelligence, First European Symposium, EUSAI 2003, Veldhoven, The Netherlands, November 3.-4, 2003, Proceedings. Lecture Notes in Computer Science 2875, Springer 2003, ISBN 3-540-20418-0