title: schemasql - a language for interoperability in relational multi-database systems l lakshmanan , f sadri , i subramanian. authors: nan. venue: vldb. year: 1996.0
title: design and implementation of nd-sql , a multi-dimensional language for interoperability and olap f gingras , lvs lakshmanan. authors: nan. venue: technical report , concordia university , montreal , canada , in. year: nan