A. M. Ullán and P. Manzanera, “Walls Matter: Art to humanize a health children’s area”, Arte, individuo y sociedad (Internet), vol. 21, pp. 123–142, May 2009, Accessed: Sep. 15, 2026. Available: https://revistas.ucm.es/index.php/ARIS/article/view/ARIS0909110123A