“Emergency Contracting to Purchase Goods and Services Needed to Deal With COVID-19: Considerations on Article 4 of Law No. 13.979 2020”. Revista do Tribunal Regional Federal da 3ª Região 31, no. 147 (December 10, 2020): 15–36. Accessed August 12, 2026. https://revista.trf3.jus.br/index.php/rtrf3/article/view/231.