@InCollection {bjs.acoo93,
author = {E. Bertino and S. Jajodia and P. Samarati},
editor = {N. Adam and B. Bhargava},
booktitle = {Advanced Database Concepts and Research Issues},
title = {Access Controls in Object-Oriented Database Systems: Some Approaches and Issues},
publisher = {Springer-Verlag},
series = {LNCS 759},
pages = {17-44},
year = {1993}
}