Submitted on: 26 March 2018.
Revised on: 20 May 2018.
Accepted on: 10 June 2018.
___________________IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION
Submitted on: 24 December 2016.
Revised on: 04 March 2017.
Accepted on: 24 April 2017.
___________________IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION
Submitted on: 03 June 2009.
Revised on: 29 September 2009.
Accepted on: 23 October 2009.
___________________IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION
Submitted on: 06 August 2002.
Revised on: 21 November 2002.
Accepted on: 13 December 2002.
___________________IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION
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Submitted on: 24 February 2006.
Revised on: 16 May 2006.
Accepted on: 04 June 2006.
___________________IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION
Submitted on: 15 February 2012.
Revised on: 06 March 2012.
Accepted on: 09 April 2012.
___________________IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION