C. Colares and J. M. Adeodato, “The Development of the Work of Silvio Romero in the Nation as Paradigm: from the Dichotomy between Positivism and Metaphysics to the Adoption of the Spencerian Evolutionism during the Republican Transition”, Prim@ Facie, vol. 10, no. 19, pp. 36–66, Sep. 2012.