conf/pods/90 Richard J. Lipton Jeffrey F. Naughton 40-46 1990 PODS db/conf/pods/pods90.html#LiptonN90 http://doi.acm.org/10.1145/298514.298540 db/conf/pods/LiptonN90.html journals/anthology/cd1-3:PODS90/P040.PDF journals/anthology/dvd1:text/1-3/PODS90/P040.PDF conf/pods/BeeriKBR87 conf/sigmod/Christodoulakis83 conf/vldb/Demolombe80 conf/pods/HouOT88 conf/vldb/LiptonN89 conf/vldb/Lynch88 journals/debu/MorrisNSUG87 conf/iclp/MorrisUG86 conf/vldb/NaughtonRSU89 conf/vldb/OlkenR86 conf/sigmod/Piatetsky-ShapiroC84 conf/sigmod/Rowe83 conf/sigmod/SelingerACLP79 conf/vldb/TsurZ86