Back, Mateus Di Palma. “The Bases and the Immediate Challenges of Hans Kelsen’s Science of Law”. Teorias do Direito e Realismo Jurídico 1, no. 1 (December 7, 2015): 258–278. Accessed December 5, 2025. https://www.indexlaw.org/index.php/teoriasdireito/article/view/330.