Kazandzhieva, Velina Ivancheva Sustainable Forms of Smart Tourism,
Union of Scientists - Varna, 2020, с. 85 - 94, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Kazandzhieva, Velina Ivancheva .
Sustainable Forms of Smart Tourism.
Varna: Union of Scientists - Varna, 2020, с. 85 - 94, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Kazandzhieva, Velina Ivancheva (2020)
Sustainable Forms of Smart Tourism,
Varna: Union of Scientists - Varna, с. 85 - 94, ISSN 1314-7390 (рrint) ; 2603-4085 (online)
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