title: an effective deductive object-oriented database through language integration 1994. authors: m. howard williams , norman w. paton , andrew dinn , maria l. barja , alvaro a. a. fernandes. venue: vldb. year: nan
title: the ccube constraint object-oriented database system alexander brodsky , victor e. segal , jia chen , paval a. exarkhopoulo 1999. authors: nan. venue: international conference on management of data. year: nan