{\noindent \bf References}

{\references

\tolerance=1000

[Ab]

Karl Abrahamson, Andrew Addler, Lisa Higham, David Kirkpatrick

Probabilistic Solitude Verification on a Ring.

{\sl Proceedings of the Fifth Annual ACM Symposium on Principles of Distributed Computing}.
Calgary, Alberta, Canada. 1986, Pages 161-173.

[Aw]

Baruch Awerbuch and Shimon Even.

Efficient and Reliable Broadcast is Achievable in an Eventually Connected Network.

{\sl Proceedings of the Third Annual ACM Symposium on Principles of Distributed Computing}.
Vancouver, B.C., Canada. 1984, Pages 278-281.

[Ba]

Norman T. J. Bailey.

{\sl The Mathematical Theory of Infectious Diseases and its Applications (second edition)}.

Hafner Press, Second Edition, 1975.

[Be83]

M. Ben-Or.

Another Advantage of Free Choice.

{\sl Proceedings of the Second Annual ACM Symposium on Principles
of Distributed Computing}.

Montreal, Quebec, Canada. 1983.

[Be85]

M. Ben-Or

Fast Asynchronous Byzantine Agreement.

{\sl Proceedings of the Fourth Annual ACM Symposium on Principles
of Distributed Computing}.

Minaki, Ontario, Canada. 1985, Pages 149-151.

[Bi]

A. D. Birrell, R. Levin, R. M. Needham, and M. D. Schroeder.

Grapevine, An Exercise in Distributed Computing.

{\sl Communications of the ACM} 25(4):260-274, 1982.

[Ch]

K. M. Chandy and L. Lamport.

Distributed Snapshots: Determining Global States of Distributed Systems.

{\sl ACM Transactions on Computing Systems} 3(1):63-75 1985


[Fr]
J. C. Frauenthal.
{\sl Mathematical Modeling in Epidemiology}, Pages 12-24.
Springer-Verlag, 1980.

[Gi]

D. K. Gifford.

Weighted Voting for Replicated Data.

{\sl Proceedings of the Seventh Symposium on Operating Systems Principles} ACM SIGOPS.

Pacific Grove, California. 1979, Pages 150-159.

[Jo]

P. R. Johnson and R. H. Thomas.

{\sl The Maintenance of Duplicate Databases}.

Bolt Beranek and Newman Inc., Arpanet Request for Comments (RFC)
677, 1975.

[La]

Butler W. Lampson.

Designing a Global Name Service.

{\sl Proceedings of the Fifth Annual ACM Symposium on Principles of Distributed Computing}.

Calgary, Alberta, Canada. 1986, Pages 1-10.

[Mo]
P. Mockapetris.
The domain name system.
{\sl Proceedings IFIP 6.5 International Symposium on Computer Messaging,}
Nottingham, England, May 1984.
Also available as:
USC Information Sciences Institute,
Report ISI/RS-84-133, June 1984.

[Op]

Derek C. Oppen and Yogen K. Dalal.

{\sl The Clearinghouse: A Decentralized Agent for Locating Named Objects in a Distributed Environment}.

Xerox Technical Report: OPD-T8103, 1981.

[Pi]
Boris Pittel.
On Spreading a Rumor.

{\sl SIAM Journal of Applied Mathematics} 47(1):213--223, 1987.

[Ra]

Michael O. Rabin.

Randomized Byzantine Generals.

{\sl 24th Annual Symposium on Foundations of Computer Science}.

IEEE Computer Society, 1983, Pages 403-409.

[Sa]

S. K. Sarin and N. A. Lynch.

Discarding Obsolete Information in a Replicated Database System.

{\sl IEEE Transactions on Software Engineering} SE-13(1):39-47 1987.

}