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3. BARTELSON Jens, “From Empire to Sovereignty –and Back?” en Ethics & International Affairs, vol. 28, nº 2, 2014, ps. 251-262.
4. BARTLEWSKI, Sabine, “Gilberto Freyre –Uma Questão de Identidade” en Tópicos, nº 2, 2000, ps. 24-25.
5. BETHENCOURT, Francisco y RAMADA CURTO, Diogo (eds.), Portuguese Oceanic Expansion, 1400-1800, Cambridge University Press, Cambridge, 2005.