Submitted on: 01 March 2015.
Revised on: 19 April 2015.
Accepted on: 14 June 2015.
___________________E & M Ekonomie a Management---TECHNICAL UNIV LIBEREC
Submitted on: 17 May 2014.
Revised on: 09 August 2014.
Accepted on: 21 August 2014.
___________________E & M Ekonomie a Management---TECHNICAL UNIV LIBEREC
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Submitted on: 11 March 2015.
Revised on: 24 June 2015.
Accepted on: 26 July 2015.
___________________E & M Ekonomie a Management---TECHNICAL UNIV LIBEREC
Submitted on: 24 March 2011.
Revised on: 09 June 2011.
Accepted on: 07 July 2011.
___________________E & M Ekonomie a Management---TECHNICAL UNIV LIBEREC
Submitted on: 10 October 2000.
Revised on: 08 January 2001.
Accepted on: 29 January 2001.
___________________E & M Ekonomie a Management---TECHNICAL UNIV LIBEREC
Submitted on: 27 July 2016.
Revised on: 01 November 2016.
Accepted on: 19 November 2016.
___________________E & M Ekonomie a Management---TECHNICAL UNIV LIBEREC
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