title: type-safe relaxing of schema consistency rules for flexible modeling in oodbms vldb j.. authors: e amiel , m bellosta , e dujardin , e simon. venue: nan. year: 1996.0
title: type-safe relaxing of schema consistency rules for flexible modelling in oodbms e amiel , mj bellosta , e dujardin , e simon 1996.0. authors: nan. venue: the vldb journal the international journal on very large & hellip ; ,. year: nan