Parke Godfrey Jarek Gryz Andrzej Hoppe Wenbin Ma Calisto Zuzarte Query Rewrites with Views for XML in DB2. 1339-1350 2009 ICDE http://dx.doi.org/10.1109/ICDE.2009.131 conf/icde/2009 db/conf/icde/icde2009.html#GodfreyGHMZ09