Silvio Salza Giovanni Barone Tadeusz Morzy Distributed Query Optimization in Loosly Coupled Multidatabase Systems. 40-53 ICDT1995/P040.pdf 1995 ICDT db/conf/icdt/icdt95.html#SalzaBM95 conf/icdt/95 http://dx.doi.org/10.1007/3-540-58907-4_5 conf/vldb/DuE89 conf/vldb/DuKS92 conf/icde/ElmagarmidD90 conf/icde/GeorgakopoulosRS91 conf/sigmod/IoannidisK91 conf/ride/LuS92 conf/ride/LuOG93 conf/sigmod/MehrotraRBKS92 conf/ride/MuthKN92 ... conf/ride/91 conf/ride/93 conf/edbt/MorzyMS94 journals/csur/ShethL90 conf/icde/ZhuL94