Fatiha Saïs Rallou Thomopoulos Reference Fusion and Flexible Querying. 1541-1549 2008 OTM Conferences (2) http://dx.doi.org/10.1007/978-3-540-88873-4_42 conf/otm/2008-2 db/conf/otm/otm2008-2.html#SaisT08