title: unisql 's next-generation object-relational database management system a d'andrea , p janus sigmod record. authors: nan. venue: nan. year: 1996.0
title: access path selection 111 a relational database management system prcceedmgs of 1979 acm sigmod conference , ( june. authors: pg sehnger , mm astrahan , dd chamberhn , ra lone , tg. venue: nan. year: nan