title: conceptual schema analysis : techniques and applications. authors: valeria de antonellis , barbara pernici , maria grazia fugini , silvana castano. venue: acm trans . database syst .. year: 1998
title: conceptual schema analysis : techniques and applications. authors: s. castano , v. de antonellis , m. g. fugini , b. pernici. venue: acm transactions on database systems ( tods ). year: 1998