The principle of non-retroactivity between administrative legality and legal certainty . Alijtihed Journal on Legal and Economic Studies, [S. l.], v. 12, n. 01, p. 273–291, 2023. DOI: 10.36540/axr18q30. Disponível em: https://alijtihed.univ-tam.dz/article/view/126.. Acesso em: 24 mar. 2026.