Maria Inácia Rezola, "The Franco–Salazar Meetings: Foreign policy and Iberian relations during the Dictatorships (1942–1963)" E-Journal of Portuguese History (2008) 6#2 pp. 1–11. online
Marco, Jorge. Rethinking the Postwar Period in Spain: Violence and Irregular Civil War, 1939–52 // Journal of Contemporary History 55 (3). 2020. DOI:10.1177/0022009419839764. с. 492.
Simkin, J. (2012). "Spanish Civil War". The Spanish Civil War Encyclopedia (Ser. Spanish Civil War). University of Sussex, Spartacus Educational E-Books.