@inproceedings{Villar_2004, series={EUSAI04}, title={A physical notice board with digital logic and display}, url={http://dx.doi.org/10.1145/1031419.1031428}, DOI={10.1145/1031419.1031428}, booktitle={Proceedings of the 2nd European Union symposium on Ambient intelligence}, publisher={ACM}, author={Villar, Nicolas and Van Laerhoven, Kristof and Gellersen, Hans}, year={2004}, month=nov, collection={EUSAI04} }