Author: Peter J. Haas, Arun N. Swami; | Publisher: Proceedings of the 1992 acm sigmod international conference on management of data san diego,carlifonia june 2-5,1992
Author: Gustavo A. Santana; Adriana Viveros S.; | Publisher: International Confernce on Information technology: coding and computing ITCC 2000, 27-29 March 2000, Las Vegas, Nevada