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Castro P., Chiu P., Kremenek T., Muntz R.R. (2001). A probabilistic room location service for wireless networked environments, in: UbiComp '01: Proceedings of the 3rd International Conference on Ubiquitous Computing, Springer-Verlag.

Chen H., Finin T., Joshi A. (2004). Semantic web in the context broker architecture, in: Proceedings of the 2nd IEEE Int. Conf. on Pervasive Computing and Communications, PerCom 2004, IEEE Computer Society.

Gandon F., Sadeh N.M. (2003) A Semantic E-Wallet to Reconcile Privacy and Context Awareness, in: Proceedings of ISWC 2003, Second International Semantic Web Conference, Springer.

Gu T., Wang X.H., Pung H.K., Zhang D.Q. (2004). An ontology-based context model in intelligent environments, in: Proceedings of Communication Networks and Distributed Systems Modeling and Simulation Conference, San Diego, California, USA.

Hightower J., Brumitt B., Borriello G. (2002). The location stack: A layered model for location in ubiquitous computing, in: Proceedings of the 4th IEEE Workshop on Mobile Computing Systems & Applications, WMCSA 2002, IEEE Computer Society Press.

Korpip P., Mntyjrvi J., Kela J., Kernen H., Malm E. J. (2003). Managing context information in mobile devices, IEEE Pervasive Computing, vol. 2, no. 3, pp. 42-51.

Perttunen M., Riekki J., Lassila O. (2009). Context Representation and Reasoning in Pervasive Computing: a Review, International Journal of Multimedia and Ubiquitous Engineering, vol. 4, no. 4.

Ranganathan A., Mcgrath R.E., Campbell R.E, Mickunas M.D. (2004). Use of ontologies in a pervasive computing environment, The Knowledge Engineering Review, vol. 18, no. 3, pp. 209-220.

Roy N., Gu T., Das S.K. (2010). Supporting pervasive computing applications with active context fusion and semantic context delivery, Pervasive and Mobile Computing, vol. 6, n. 1, pp. 21-42. : 3 7

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Dey, A.K., Abowd, G.D. (2000). Towards a better understanding of context and context-awareness. In Proceedings Workshop on the What, Who, Where, When and How of Context-Awareness, affiliated with the 2000 ACM Conference on Human Factors in Computer Systems (CHI 2000).

Henricksen, K., Indulska, J., Rakotonirainy, A. (2002). Modeling Context Information in Pervasive Computing Systems, in Mattern, F. and Naghshineh, M. (Eds.) Pervasive 2002, LNCS 2414, pp. 167180. Springer-Verlag Berlin Heidelberg.

Strobbe M., Van Laere O., Ongenae F., Dauwe S., Dhoedt B., De Turck F., Demeester P., Luyten K. (2011). Integrating Location and Context Information for Novel Personalised Applications, IEEE Pervasive Computing (to be published).

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Kjeldskov, J., & Stage, J. (2004). New techniques for usability evaluation of mobile systems. International Journal of Human-Computer Studies, 60(5), 599-620. Zhang, D., & Adipat, B. (2005). Challenges, methodologies, and issues in the usability testing of mobile applications. International Journal of Human-Computer Interaction, 18(3), 293-308. Lim, Y. K., Pangam, A., Periyasami, S., & Aneja, S. (2006). Comparative analysis of high-and low-fidelity prototypes for more valid usability evaluations of mobile devices. In Proceedings of the 4th Nordic conference on Human-computer interaction: changing roles (pp. 291-300). ACM. Zhang, D., & Adipat, B. (2005). Challenges, methodologies, and issues in the usability testing of mobile applications. International Journal of Human-Computer Interaction, 18(3), 293-308.

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