1. Chen, H., Finin, T., Joshi, A.: An ontology for context aware pervasive computing environments. In: Knowledge Engineering Review - Special Issue on Ontologies for Distributed Systems, Cambridge University Press, Cambridge (2004)
2. Christopoulou, E., Kameas, A.: GAS Ontology: an ontology for collaboration among ubiquitous computing devices. To appear in Protégé special issue of the International Journal of Human – Computer Studies
3. Disappearing Computer initiative, http://www.disappearing-computer.net/
4. extrovert-Gadgets project website http://www.extrovert-gadgets.net
5. Kameas, A., Bellis, S., Mavrommati, I., Delaney, K., Colley, M., Pounds-Cornish, A.: An Architecture that Treats Everyday Objects as Communicating Tangible Components. In: Proceedings of the 1st IEEE International conference on Pervasive Computing and Communications (PerCom 2003), Forth Worth, USA (2003)