KORNEEVETS, V. S.; KROPINOVA, E. G.; DRAGILEVA, I. I. The Current Approaches to the Transborder Studies in the Sphere of Tourism. International Journal of Economics and Financial Issues, [S. l.], v. 5, n. 2S, p. 65–73, 2015. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/1589. Acesso em: 26 may. 2022.