Prieto, Julián. “Köpcke, Maris, Legal Validity: The Fabric of Justice, Oxford, Hart Publishing, 2019, 184 Pp”. Prudentia Iuris, no. 90 (December 29, 2020): 243–247. Accessed May 2, 2024. https://erevistas.uca.edu.ar/index.php/PRUDENTIA/article/view/3343.