Zabala-Vázquez, Jon, and Marí­a-Begoña Sánchez-Galán. “Advertising Documents in Film Archives: Importance, Present Situation and Difficulties of Analysis”. Profesional de la información 23, no. 1 (January 14, 2014): 036–043. Accessed July 3, 2024. https://revista.profesionaldelainformacion.com/index.php/EPI/article/view/epi.2014.ene.04.