Navarro, Cristina; Piferrer, Dídac (15 September 2011). "Álvaro no quiere bajarse de la nube" [Álvaro would like to remain up in a cloud]. Marca (in Spanish). Retrieved 22 January 2021.
Aldunate, Ramiro (11 January 2012). "Álvaro se toma la Copa del Califa" [Álvaro drinks Califh's Cup]. Marca (in Spanish). Retrieved 12 January 2012.