Submitted on: 05 October 2016.
Revised on: 20 January 2017.
Accepted on: 01 February 2017.
___________________Central European Business Review
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Submitted on: 30 May 2010.
Revised on: 21 July 2010.
Accepted on: 12 September 2010.
___________________Central European Business Review
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Submitted on: 16 April 2000.
Revised on: 23 May 2000.
Accepted on: 12 June 2000.
___________________Central European Business Review