2019
Santos, R., Castanho, R. A., & Lousada, S. (2019). Return migration and tourism sustainability in Portugal: Extracting opportunities for sustainable common planning in Southern Europe. Sustainability, 11(22), 6468.
2018
Sofronov, B. (2018). The Development of the Travel and Tourism Industry in the World. Annals of Spiru Haret University. Economic Series, 18(4), 123-137. https://doi.org/10.26458/1848
