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Business: Theory and Practice 15(4): 398-407
doi:
10.3846/btp.2014.421
Published:
19 Dec 2014
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Authors
Povilas Vyšniauskas
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Vilniaus Gedimino technikos universitetas, Lithuania
Conflict of interest
The authors have declared that no competing interests exist.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.