Rachid Kadouche Mounir Mokhtari Sylvain Giroux Bessam Abdulrazak Semantic approach for modelling an assistive environment using description logic. 222-231 2008 iiWAS http://doi.acm.org/10.1145/1497308.1497351 conf/iiwas/2008 db/conf/iiwas/iiwas2008.html#KadoucheMGA08