Anastasios Gounaris Christos Yfoulis Rizos Sakellariou Marios D. Dikaiakos Robust Runtime Optimization of Data Transfer in Queries over Web Services. 596-605 2008 ICDE http://dx.doi.org/10.1109/ICDE.2008.4497468 conf/icde/2008 db/conf/icde/icde2008.html#GounarisYSD08