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Kalinina, M.A. SMM Competitive Advantages within Contempory Tourism Market. / M.A. Kalinina, Smirnova A.V. // European Proceeding of Social and Behavioural Scients EpSBS. – 2020. – March. — P. 1416-1421 — <URL:http://elib.fa.ru/art2020/bv168.pdf>.
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