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Iryna Volkova and Anatoliy Parfinenko 2022. Tourism development in the countries of the Western Black Sea Coast (Romania аnd Bulgaria) and their cooperation with Ukraine. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism. 15 (Aug. 2022), 68-80. DOI:https://doi.org/10.26565/2310-9513-2022-15-08.