Monica Palmirani Raffaella Brighi Matteo Massini Processing Normative References on the Basis of Natural Language Questions. 9-12 2004 conf/dexaw/2004 DEXA Workshops http://doi.ieeecomputersociety.org/10.1109/DEXA.2004.128 db/conf/dexaw/dexaw2004.html#PalmiraniBM04