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Publicado en línea: 26 ago 2017
Páginas: 597 - 606
DOI: https://doi.org/10.1515/picbe-2017-0064
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© 2017 Luminiţa Nicolescu et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Nicolescu, Luminiţa
The Bucharest University of Economic StudiesBucharest, Romania
Tudorache, Florentin Gabriel
The Bucharest University of Economic StudiesBucharest, Romania