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Publicado en línea: 24 jul 2025
Páginas: 355 - 366
DOI: https://doi.org/10.2478/picbe-2025-0030
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© 2025 Plamena Nedyalkova, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Nedyalkova, Plamena
University of Economics – VarnaRussia