@article{barros_guilhoto_2014,  title={The Regional Economic Structure of Brazil in 1959: An Overview Based on
               an Interstate Input-Output Matrix},  volume={68},  ISSN={0034-7140},  url={https://doi.org/10.1590/S0034-71402014000300002},  DOI={10.1590/S0034-71402014000300002},  number={3},  journal={Revista Brasileira de Economia},  publisher={Fundação Getúlio Vargas},  author={Barros, Gustavo and Guilhoto, Joaquim José Martins},  year={2014},  month={Sep},  pages={317–335} }