title: olap + + : powerful and easy-to-use federations of olap and object databases. authors: junmin gu , arie shoshani , torben bach pedersen. venue: vldb. year: 2000
title: olap + + : powerful and easy-to-use federations of olap and object databases. authors: junmin gu , torben bach pedersen , arie shoshani. venue: very large data bases. year: 2000