1. P.A. Alsberg and J.D. Day. A principle for resilient sharing of distributed resources. In Proceedings of the Second International Conference on Software Engineering, pages 627–644, October 1976.
2. J.F. Barlett. A nonstop kernel. In Proceedings of the Eighth ACM Symposium on Operating System Principles, SIGOPS Operating System Review, volume 15, pages 22–29, December 1981.
3. Anupam Bhide, E.N. Elnozahy, and Stephen P. Morgan. A highly available network file server. In USENIX, pages 199–205, 1991.
4. Navin Budhiraja, Keith Marzullo, Fred B. Schneider, and Sam Toueg. Optimal primary-backup protocols. Technical report, Cornell University, Ithaca, N.Y., 1992. In preparation.
5. Navin Budhiraja, Keith Marzullo, Fred B. Schneider, and Sam Toueg. Primarybackup protocols: Lower bounds and optimal implementations. In Proceedings of the Third IFIP Working Conference on Dependable Computing for Critical Applications, 1992. To Appear.