Submitted on: 26 May 2006.
Revised on: 11 July 2006.
Accepted on: 26 July 2006.
___________________JOURNAL OF AIR TRANSPORT MANAGEMENT
Submitted on: 23 December 2019.
Revised on: 23 March 2020.
Accepted on: 03 May 2020.
___________________JOURNAL OF AIR TRANSPORT MANAGEMENT
Submitted on: 02 January 2019.
Revised on: 03 February 2019.
Accepted on: 12 March 2019.
___________________JOURNAL OF AIR TRANSPORT MANAGEMENT
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Submitted on: 26 December 1998.
Revised on: 28 January 1999.
Accepted on: 19 March 1999.
___________________JOURNAL OF AIR TRANSPORT MANAGEMENT
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