1. We include here references cited in the foreword as well as references cited in the glossary itself.
2. Arens, Yigal, Chin Chee, Chun-Nan Hsu, Hoh In, and Craig Knoblock: ?Query Processing in an Information Mediator?; Proc. ARPA/Rome Laboratory Knowledge-Based Planning and Scheduling Initiative Workshop, Tucson AZ, Morgan Kaufmann, 1994.
3. Barsalou, Thierry and Gio Wiederhold: ?Knowledge-directed Mediation Between Application Objects and Data?; Proc. Working Conf. on Data and Knowledge Integration, Un. of Keele, England, 1989, Pittman Pub.
4. Cattell, R. (ed): The Object Database Standard: ODMG (3 9version 1.1); Morgan Kaufman, May 1994. Chu, W.W. M. Merzbacher, and L. Berkovich: ?The Design and Implementation of CoBase?; ACM SIGMOD '93, May 1993, pp. 517?522.
5. Chu, W.W. and Q. Chen: ?A Structured Approach for Cooperative Query Answering?; IEEE Transactions on Knowledge and Data Engineering, Vol. 6 No.5, October 1994.