Submitted on: 04 December 2007.
Revised on: 26 December 2007.
Accepted on: 02 February 2008.
___________________International Journal of Distributed Systems and Technologies
Submitted on: 18 July 2022.
Revised on: 11 October 2022.
Accepted on: 06 December 2022.
___________________International Journal of Distributed Systems and Technologies
Submitted on: 13 April 2013.
Revised on: 11 August 2013.
Accepted on: 02 September 2013.
___________________International Journal of Distributed Systems and Technologies
Submitted on: 15 October 2003.
Revised on: 06 February 2004.
Accepted on: 09 March 2004.
___________________International Journal of Distributed Systems and Technologies
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