1. Alonso, G., Mohan, C., Günthör, R., Agrawal, D., El Abbadi, A., Kamath, M.: Exotica/FMQM: A Persistent Message-Based Architecture for Distributed Workflow Management, IFIP Working Conference on Information System Development for Decentralised Organizations, Trondheim, Norway, 1995.
2. Alonso, G., Hagen, C., Schek, H.-J., Tresch, M.: Distributed Processing Over Stand-alone Systems and Applications, Proceedings of the 23rd International Conference on Very Large Data Bases (VLDB), Athens, Greece, 1997.
3. Alpern, B., Schneider, F.B.: Recognizing Safety and Liveness, Distributed Computing Vol. 2 No. 3, 1987, pp. 117–126.
4. Apers, P.M.G., Blanken, H.M., Houtsma, M.A.W. (Editors): Multimedia Databases in Perspective, Springer, 1997.
5. The Asilomar Report on Database Research, ACM SIGMOD Record Vol. 27 No. 4, December 1998.