Paolo Atzeni Riccardo Torlone Solving Ambiguities in Updating Deductive Databases. 104-118 MFDBS1991/P104.pdf 1991 MFDBS db/conf/mfdbs/mfdbs91.html#AtzeniT91 conf/mfdbs/91 db/conf/mfdbs/AtzeniT91.html conf/sigmod/AtzeniT90 conf/pods/AtzeniT89 conf/ewdw/AtzeniT90a journals/tods/BancilhonS81 books/sp/CeriGT90 journals/jacm/CosmadakisP84 journals/tods/DayalB82 conf/icdt/Decker90 journals/acr/FaginKUV86 journals/tods/GottlobPZ88 conf/vldb/KakasM90 conf/pods/Keller85 books/sp/Lloyd87 books/mk/minker88/ManchandraW88 conf/pods/NaqviK88 conf/iclp/RossiN89 conf/icdt/Tomasic88 books/cs/Ullman88 conf/pods/Wilkins86 conf/pods/Winslett88