http://dx.doi.org/10.1007/BFb0100977 Ramana Yerneni Yannis Papakonstantinou Serge Abiteboul Hector Garcia-Molina 57-71 EDBT/1998/13770057.pdf http://link.springer.de/link/service/series/0558/bibs/1377/13770057.htm 1998 conf/edbt/98 EDBT db/conf/edbt/edbt98.html#YerneniPAG98 journals/ijcis/ArensCHK93 conf/sigmod/Blakeley96 books/sp/CeriGT90 books/mg/CeriP84 conf/vldb/DuKS92 conf/sac/DuschkaG97 journals/debu/GassnerLSW93 journals/debu/Graefe95a conf/pdis/GuptaL94 conf/vldb/HaasKWY97 conf/sigmod/HaasFLP89 conf/vldb/LevyRO96 journals/csur/LitwinMR90 conf/sigmod/Lohman88 conf/ride/LuOG93 books/ph/OzsuV91 ... conf/icde/PapakonstantinouGW95 conf/dood/PapakonstantinouGGU95 journals/tkde/RoussopoulosK91 ... books/mg/SilberschatzKS97 ... ... conf/icde/ZhuL94