title: bifocal sampling for skew-resistant join size estimation. authors: s ganguly , p gibbons , y matias , a silberschatz. venue: sigmod conference. year: 1996.0
title: matias , and a. silberschatz . bifocal sampling for skew-resistant join size estimation sg ggms , pb gibbons. authors: nan. venue: proceedings of the acm sigmod international conference on. year: nan