M. da Costa, “When Spain believed that Katyn Could Win the War: Propaganda Vision of the Katyn Massacre by Intellectuals and Journalists of Franco’s Spain”, in Populismo y propaganda: entre el presente y el pasado, Łukasz Szkopiński and A. Woch, Eds. Poland: Lodz University Press, 2020, pp. 189–199. doi: 10.18778/8142-734-0.16.