title: mining multi-dimensional constrained gradients in data cubes. authors: jiawei han , ke wang , joyce m. w. lam , guozhu dong , jian pei. venue: vldb. year: 2001
title: mining multi-dimensional constrained gradients in data cubes. authors: guozhu dong , jiawei han , joyce m. w. lam , jian pei , ke wang. venue: very large data bases. year: 2001