title: a query language for multidimensional arrays : design , implementation , and optimization techniques l libkin , r machlin , l wong sigmod conference. authors: nan. venue: nan. year: 1996.0
title: a query languageand optimizationtechnieques for unstructured data. authors: p buneman , s davidson , g hillebrand , d suciu. venue: proceedings of the acm sigmod international conference on. year: nan