Sanguiné, O. e Guimarães, F.M.V. 2019. The constitutionality of the early prorogation of the public service concessions. A&C - Revista de Direito Administrativo & Constitucional. 19, 78 (dez. 2019), 63–85. DOI:https://doi.org/10.21056/aec.v19i78.1187.