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2020
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Bucharest: The Bucharest University of Economic Studies, 2020
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2021
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Bucharest: The Bucharest University of Economic Studies, 2021
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MDPI AG, 2023
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Bucharest University of Economic Studies, 2020
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MDPI AG, 2021
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2015
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2015
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2016
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Bucharest University of Economic Studies, 2021
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Tomas Bata University in Zlin, 2021
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2021
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Faculty of Economic Sciences, University of Oradea, 2021
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Technical University of Liberec, 2022