title: the ccube constraint object-oriented database system. authors: a brodsky , v segal , j chen , p exarkhopoulo. venue: sigmod conference. year: 1999
title: transaction management in an object-oriented database system , h. boral , p.-a . larson. authors: jf garza , w kim. venue: proc . acm sigmod , chicago , ill. , sigmod record ,. year: nan