db/conf/dl/ChangG98.html Kevin Chen-Chuan Chang Hector Garcia-Molina Conjunctive Constraint Mapping for Data Translation. 49-58 DL1998/P049.pdf 1998 conf/dl/98 ACM DL db/conf/dl/dl98.html#ChangG98 http://doi.acm.org/10.1145/276675.276681