 <a href="http://www.cs.cornell.edu/Info/People/chandra/home.html">Chandra, T.</a>, and S. Toueg. <a href="http://www.cs.cornell.edu/Info/People/chandra/UnreliableFD.html">Unreliable failure detectors for asynchronous systems.</a> <I>  Proceedings 10th ACM Symposium on Principles of Distributed Computing </I>. August 1991, Montreal, Canada, 257-272. <p>
