Takeshi Fukuda Yasuhiko Morimoto Shinichi Morishita Takeshi Tokuyama SONAR: System for Optimized Numeric AssociationRules. 553 1996 conf/sigmod/96 SIGMOD Conference db/conf/sigmod/sigmod96.html#FukudaMMT96a https://doi.org/10.1145/233269.280359 https://doi.org/10.1145/235968.280359 SIGMOD96/P553.PDF conf/pods/FukudaMMT96 conf/sigmod/FukudaMMT96