"Arrogantes russos com sorte imerecida" [Cocky Russians got more than they deserved]. Diário de Notícias (in Portuguese). 21 August 2009. Retrieved 28 March 2021.
"Luis Alberto" (in Portuguese). Mais Futebol. Retrieved 28 March 2021.
Cunha, Pedro Jorge (24 August 2008). "Leixões-Nacional, 1–3 (crónica)" [Leixões-Nacional, 1–3 (match report)] (in Portuguese). Mais Futebol. Retrieved 28 March 2021.
Fernandes, João Manuel (23 November 2008). "Nacional-Trofense, 1–0 (crónica)" [Nacional-Trofense, 1–0 (match report)] (in Portuguese). Mais Futebol. Retrieved 28 March 2021.