title: a general techniques for querying xml documents using a relational database system 2001. authors: j shanmugasundaram , e shekita , j kiernan , r krishnamurthy , s viglas , j naughton , i tatarinov. venue: sigmod record. year: nan
title: a scan-driven sort facility for a relational database system. authors: t haerder. venue: vldb ,. year: 1977.0