title: on the computation of relational view complements j lechtenbіrger , g vossen acm trans . database syst . 2003. authors: nan. venue: nan. year: nan
title: on the complexity of the view-selection problem 1999.0. authors: h karloff , m mihail. venue: proceedings of the eighteenth acm sigmod-sigact-sigart & hellip ; ,. year: nan