CICALÒ, Enrico. Protography, or on the Origin of the Graphic Sign. TRIBELON Journal of Drawing and Representation of Architecture, Landscape and Environment, [S. l.], v. 3, n. 5, p. 44–51, 2026. DOI: 10.36253/tribelon-3972. Disponível em: https://riviste.fupress.net/index.php/tribelon/article/view/3972. Acesso em: 6 jul. 2026.