conf/pods/92 Jan Van den Bussche Dirk Van Gucht 191-201 1992 PODS db/conf/pods/pods92.html#BusscheG92 http://doi.acm.org/10.1145/137097.137866 journals/anthology/cd1-3:PODS92/P191.PDF journals/anthology/dvd1:text/1-3/PODS92/P191.PDF ... conf/pods/90 conf/pods/91 conf/sigmod/AbiteboulK89 ... conf/pods/AbiteboulSV90 journals/jcss/AbiteboulV90 journals/jcss/AbiteboulV91 conf/stoc/AbiteboulV91 journals/jcss/ChandraH80 conf/pods/Chandra88 conf/pods/GyssensPG90 conf/pods/HullS89 conf/vldb/HullY90 conf/pods/HullY91 journals/iandc/Immerman86 conf/vldb/Kim89 journals/jacm/KiferLW95 ... conf/pods/KuperV84 books/cs/NaqviT89 conf/pods/SaccaZ90 conf/stoc/Vardi82 conf/pods/BusscheP91 conf/dood/Zaniolo89