Pattern Match Reduction for the relational Production Language in the USL MMDBS.

http://doi.acm.org/10.1145/71031.71039 Lois M. L. Delcambre Jint Waramahaputi James N. Etheredge Pattern Match Reduction for the relational Production Language in the USL MMDBS. 59-67 sigmodR/18-3/P059.pdf 1989 18 SIGMOD Record 3 db/journals/sigmod/sigmod18.html#DelcambreWE89