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2022
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2023
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2022
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2020
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Sumy State University, 2022
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Technical University of Liberec, 2023
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Sumy State University, 2023
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Entrepreneurship and Sustainability Center, 2022
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Instytut Badan Gospodarczych / Institute of Economic Research, 2022
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Instytut Badan Gospodarczych / Institute of Economic Research, 2020
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Sumy State University, 2020
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Sumy State University, 2020
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Entrepreneurship and Sustainability Center, 2019
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Sumy State University, 2019