title: naos - efficient and modular reactive capabilities in an object-oriented database system thierry coupaye , t. svensen , christine collet. authors: nan. venue: vldb. year: 1994.0
title: calibrating the query optimizer cost model of iro-db , an object-oriented federated database system georges gardarin , fei sha , zhao-hui tang very large data bases. authors: nan. venue: nan. year: 1996.0