title: schema and database evolution in the o2 object database system f ferrandina , t meyer , r zicari , g ferran , j madec 1995. authors: nan. venue: vldb. year: nan
title: semantics and implementation of schema evolution in object-oriented databases sigmod records , 1987.0. authors: j barnejee , w kim , hj kim , h korth. venue: nan. year: nan