Di Lucia, Paolo, and Lorenzo Passerini Glazel. “Two Semiotic Shifts in the Philosophy of Norms: Meaning Shift and Referent Shift”. Phenomenology and Mind, no. 13 (December 30, 2017): 10–18. Accessed April 27, 2024. https://oaj.fupress.net/index.php/pam/article/view/7285.