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Submitted on: 14 May 2008.
Revised on: 06 July 2008.
Accepted on: 09 August 2008.
___________________Boundary Value Problems---SPRINGER
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Submitted on: 28 October 2019.
Revised on: 12 February 2020.
Accepted on: 10 March 2020.
___________________Boundary Value Problems---SPRINGER
Submitted on: 10 May 2001.
Revised on: 29 August 2001.
Accepted on: 16 September 2001.
___________________Boundary Value Problems---SPRINGER
Submitted on: 15 February 2013.
Revised on: 30 April 2013.
Accepted on: 01 June 2013.
___________________Boundary Value Problems---SPRINGER
Submitted on: 29 December 2020.
Revised on: 22 February 2021.
Accepted on: 09 April 2021.
___________________Boundary Value Problems---SPRINGER