INNOVATIONAL TECHNOLOGIES FOR THE TRAVEL INDUSTRY: SECURITY AND SUSTAINABLE DEVELOPMENT. Economics and region, [S. l.], n. 3(64), p. 31–37, 2017. DOI: 10.26906/EiR.2017.3(64).873. Disponível em: https://ojs35.nupp.edu.ua/eir/article/view/873. Acesso em: 23 dec. 2025.