Submitted on: 23 February 2013.
Revised on: 10 April 2013.
Accepted on: 08 May 2013.
___________________IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
Submitted on: 28 May 1999.
Revised on: 13 September 1999.
Accepted on: 06 October 1999.
___________________IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
Submitted on: 14 July 1998.
Revised on: 21 October 1998.
Accepted on: 05 December 1998.
___________________IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
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