title: an axiomatic model of dynamic schema evolution in objectbase systems. authors: m. tamer özsu , randal j. peters. venue: acm trans . database syst .. year: 1997
title: an axiomatic model of dynamic schema evolution in objectbase systems. authors: randel j. peters , m. tamer &#214; zsu. venue: acm transactions on database systems ( tods ). year: 1997