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Submitted on: 15 February 2020.
Revised on: 23 May 2020.
Accepted on: 17 June 2020.
___________________Journal of Integral Equations and Applications
Submitted on: 22 December 2004.
Revised on: 25 February 2005.
Accepted on: 29 March 2005.
___________________Journal of Integral Equations and Applications
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Submitted on: 17 January 2005.
Revised on: 27 February 2005.
Accepted on: 23 March 2005.
___________________Journal of Integral Equations and Applications
Submitted on: 12 November 2010.
Revised on: 28 December 2010.
Accepted on: 28 January 2011.
___________________Journal of Integral Equations and Applications
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