da Costa, Marco. “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, edited by Łukasz Szkopiński and Agnieszka Woch, 189–199. Poland: Lodz University Press, 2020. Accessed January 25, 2026. https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1300/chapter/3959.