conf/pods/92 Sergio Greco Carlo Zaniolo Sumit Ganguly Greedy by Choice. 105-113 1992 PODS db/conf/pods/pods92.html#GrecoZG92 http://doi.acm.org/10.1145/137097.137836 db/conf/pods/GrecoZG92.html journals/anthology/cd1-3:PODS92/P105.PDF journals/anthology/dvd1:text/1-3/PODS92/P105.PDF conf/pods/GangulyGZ91 ... conf/iclp/GelfondL88 conf/dood/GiannottiPSZ91 ... ... conf/jcdkb/KrishnamurthyN88 ... conf/pods/SaccaZ90 ... journals/jacm/GelderRS91 ...