(en) Graciela Iglesias Rogers, British Liberators in the Age of Napoleon : Volunteering under the Spanish Flag in the Peninsular War, Continuum Publishing Corporation, , 338 p. (ISBN978-1-4411-3565-0, lire en ligne).
cambridge.org
(en) Nir Arielli, « In Search of Meaning: Foreign Volunteers in the Croatian Armed Forces, 1991–95 », Cambridge University Press, (lire en ligne, consulté le ).
