Julia Kantorovitch Jarmo Kalaoja Ilkka Niskanen Toni Piirainen Towards a Better Understanding of Semantic Ontology-Based Home Service Modelling. 26-31 2008 AINA http://doi.ieeecomputersociety.org/10.1109/AINA.2008.127 conf/aina/2008 db/conf/aina/aina2008.html#KantorovitchKNP08