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Submitted on: 31 October 2008.
Revised on: 12 November 2008.
Accepted on: 08 December 2008.
MATHEMATICAL INEQUALITIES & APPLICATIONS
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Submitted on: 20 September 2007.
Revised on: 30 September 2007.
Accepted on: 13 October 2007.
MATHEMATICAL INEQUALITIES & APPLICATIONS
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