title: efendi : federated database system of cadlab. authors: bernd burkert , yaron engel , ralf böttger , gerd kachel , elke radeke , silvia kolmschlag , dietmar nolte. venue: sigmod conference. year: 1995
title: efendi : federated database system of cadlab. authors: e. radeke , r. b &#246; ttger , b. burkert , y. engel , g. kachel , s. kolmschlag , d. nolte. venue: international conference on management of data. year: 1995