The black international, 1870-1878 : the holy see and militant catholicism in Europe= L'Internationale noire: le Saint-Siège et le Catholicisme militant en Europe / edited by Emiel Lamberts. - Lamberts, Emiel, ed. (OLS)http://pul/name/42299 (Leuven University Press, 2002)
Bibliografia: p. 482-503