Heredia-Sánchez, Fernando. “University Libraries and Lifelong Learning of Older People: Analysis of an Experience in a Digital Environment”. Revista General de Información y Documentación 33, no. 1 (June 21, 2023): 281–298. Accessed July 10, 2026. https://revistas.ucm.es/index.php/RGID/article/view/83228.