D. I. S. de . Pontes and H. J. B. de C. Carvalho, “Interfederative governance model: an analysis of four metropolitan regions from the theory of governance and economics of proximity”, Rev. Dep. Geogr., vol. 41, no. 1, p. e184366 , Dec. 2021, doi: 10.11606/eISSN.2236-2878.rdg.2021.184366.