Škorić, S. and Jovanović, V. 2021. "COVID PASSPORTS" - LEGAL ASPECT, POSSIBLE USE AND IMPACT ON TOURISM DEVELOPMENT. Tourism International Scientific Conference Vrnjačka Banja - TISC. 6, 1 (Jun. 2021), 484-499. DOI:https://doi.org/10.52370/TISC21484SS.