Villarroel-Flores, M. 2025. Public procurement and implementation of public policies, regarding the disabilities of article 4 of law Nº 19.886 (Constitutional Court). Revista de Derecho (Valdivia). 38, 1 (Jun. 2025), 229–235. DOI:https://doi.org/10.4067/S0718-09502025000100229.