conf/pods/92 Alon Y. Levy Yehoshua Sagiv 67-80 1992 PODS db/conf/pods/pods92.html#LevyS92 http://doi.acm.org/10.1145/137097.137111 journals/anthology/cd1-3:PODS92/P067.PDF journals/anthology/dvd1:text/1-3/PODS92/P067.PDF conf/slp/KempRBM89 conf/pods/BrodskyS91 journals/tcs/Courcelle91 conf/pods/KanellakisKR90 conf/jcdkb/Kifer88 journals/jacm/Klug88 conf/pods/MumickFPR90 ... conf/sigmod/Saraiya90 conf/pods/Shmueli87 conf/icdt/SippuS90 books/cs/Ullman89 conf/pods/Gelder90 conf/pods/Vardi89