title: a taxonomy for secure object-oriented databases. authors: sebastiaan h. von solms , martin s. olivier. venue: acm trans . database syst .. year: 1994
title: metu object-oriented dbms. authors: asuman dogac , budak arpinar , cem evrendilek , cetin ozkan , ilker altintas , ilker durusoy , mehmet altinel , tansel okay , yuksel saygin. venue: international conference on management of data. year: 1994