% References

\begin{thebibliography}{MMM88a}

\bibitem[Lamp85]{Lamp85} L. Lamport and P. Melliar-Smith,
"Synchronizing Clocks in the Presence of Faults," 
{\it Journal of ACM}, 
vol.32 no.1 Jan. 1985
\bibitem[Kris85]{Kris85} C. M. Krishna, K. G. Shin, and R. W. Butler,
"Ensuring Fault Tolerance of Phase-locked Clocks,"
{\it IEEE Trans. Comput.},
vol.C-34,no.8, Aug. 1985
\bibitem[Shin87]{Shin87} K. G. Shin and P. Ramanathan,
"Clock Synchronization of a Large Multiprocessor System in the Presence of 
Malicious Faults,"
{\it IEEE Trans. Comput.},
vol.C-36,no.1, Jan. 1987
\bibitem[Choi90]{Choi90} B.-R. Choi, K. H. Park, M. Kim,
"An Improved Hardware Implementation of the Fault-Tolerant Clock 
Synchronization Algorithm for Large Multiprocessor Systems,"
{\it IEEE Trans. Comput.},
vol.C-39,no.3, Mar. 1990
\bibitem[Vasa88]{Vasa88} N. Vasathavada and P. Marinos, 
"Synchronization of Fault-Tolerant Clocks in the Presence of Malicious
Fauilures,"
{\it IEEE Trans. Comput.},
vol.C-37,no.4, Apr. 1988
\bibitem[Kris90]{Kris90} C. M. Krishna,
"Fault-Tolerant Clock Synchronization Using Phased-Locked Clocks,"
{\it Microelectron. Reliab.},
vol.30,no.2, 1990
\bibitem[Rama90a]{Rama90a} P. Ramanathan, D. Kandlur, and K. G. Shin,
"Hardware-assisted Software Clock Synchronization for Homogeneous Distributed
Systems,"
{\it IEEE Trans. Comput.},
vol.C-39,no.4, Apr. 1990
\bibitem[Rama90b]{Rama90b} P.Ramanathan, K. G. Shin, and R. W. Butler,
"Fault-Tolerant Clock Synchronization in Distributed Systems,"
{\it IEEE Computer},
Oct. 1990

\end{thebibliography}

\end{document}
