Alchourrón, Carlos E., and Eugenio Bulygin. “On the Concept of Legal Order”. Crítica. Revista Hispanoamericana de Filosofía 8, no. 23 (October 31, 2018): 3–23. Accessed April 18, 2025. https://critica.filosoficas.unam.mx/index.php/critica/article/view/186.