conf/sigmod/91 Ulrich Güntzer Werner Kießling Helmut Thöne New Directions For Uncertainty Reasoning In Deductive Databases. 178-187 SIGMOD91/P178.PDF 1991 SIGMOD Conference db/conf/sigmod/sigmod91.html#GuntzerKT91 http://doi.acm.org/10.1145/115790.115815 db/conf/sigmod/GuntzerKT91.html ... conf/edbt/BarbaraGP90 ... books/sp/CeriGT90 conf/aaai/HeckermanH87 ... journals/ife/KiesslingG90 journals/sigmod/SilberschatzSU90 ... books/cs/NaqviT89 ... journals/cj/Quinlan83 ... conf/pods/SagivV89 ... conf/iclp/ShmueliN87 conf/btw/SchmidtKGB89 conf/dood/SchmidtSGKAB89 ... books/cs/Ullman88 books/cs/Ullman89 ... conf/iclp/Zaniolo88