@inproceedings{patkos07uic,
author ="Theodore Patkos,  Antonis Bikakis,  Grigoris Antoniou,  Maria Papadopouli and Dimitris Plexousakis",
title="A Semantics-based Framework for Context-Aware Services: Lessons Learned and Challenges",
booktitle="4th International Conference on Ubiquitous Intelligence and Computing (UIC-07)",
year =2007,
mon=jul,
address="Hong Kong"
}