title: a query language and optimization techniques for unstructured data sigmod conference 1996. authors: p buneman , s davidson , g hillebrand , d suciu. venue: nan. year: nan
title: erq : controlled inference and instruction techniques for dbms query languages proceedings of the 1982 acm sigmod international conference & hellip ; , 1982.0. authors: j longstaff. venue: nan. year: nan