Submitted on: 16 July 2013.
Revised on: 13 August 2013.
Accepted on: 05 October 2013.
___________________JOURNAL OF AEROSPACE ENGINEERING
Submitted on: 17 June 2014.
Revised on: 12 August 2014.
Accepted on: 09 September 2014.
___________________JOURNAL OF AEROSPACE ENGINEERING
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Submitted on: 27 May 1998.
Revised on: 07 September 1998.
Accepted on: 26 September 1998.
___________________JOURNAL OF AEROSPACE ENGINEERING
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