Tabau, C. V., and E. Leite. “Business Internationalization in the Wine Sector: An Analysis of the Douro”. E3 — Revista De Economia, Empresas E Empreendedores Na CPLP, vol. 5, no. 1, Apr. 2020, pp. 85-114, doi:10.29073/e3.v5i1.191.