Maria Rekouts Maxim Grinev Alexander Boldakov A Method for XQuery Transform Implementation Based on Shadow Mechanism. 470-475 2006 conf/dexaw/2006 DEXA Workshops http://doi.ieeecomputersociety.org/10.1109/DEXA.2006.11 db/conf/dexaw/dexaw2006.html#RekoutsGB06