Alexandra Poulovassilis Carol Small Algebraic Query Optimisation for Database Programming Languages VLDB J. 5 2 1996 119-132 VLDBJ5/60050119.pdf db/journals/vldb/vldb5.html#PoulovassilisS96 http://dx.doi.org/10.1007/s007780050019 conf/vldb/Albert91 conf/lfp/Augustsson84 conf/vldb/BancilhonBKV87 conf/icdt/BeeriK90 conf/pods/BeeriM92 ... conf/dbpl/TannenBN91 journals/jacm/BurstallD77 conf/vldb/ChaudhuriS94 conf/fpca/ClackJ85 conf/sigmod/CluetD92 books/mk/freytagMV91/DemuthGG91 conf/dbpl/ErwigL91 journals/tods/FreytagG89 conf/pods/GangulyGZ91 journals/cj/HarrisonK92 ... books/cu/HindleyS86 journals/csur/JarkeK84 ... conf/dbpl/LibkinW93 conf/sigmod/LieuwenD92 conf/sigmod/OhoriBT89 journals/cj/PatonG90 ... books/ph/Jones87 journals/siamcomp/Plotkin76 conf/vldb/PoulovassilisS93 ... conf/dbpl/ShawZ89 conf/sigmod/Stonebraker91 ... books/cs/Ullman89 conf/sigmod/VandenbergD91 conf/lfp/Wadler90