Della Bruna, Asia. “Cognitive Semiotic Processes in Mathematical Reasoning: Raymond Duval’s Thought in Light of Charles Sanders Peirce’s Semiotic Theories”. La Matematica E La Sua Didattica, vol. 33, no. 2, Jan. 2025, pp. 161-77, doi:10.60923/issn.3035-2940/23700.