0041-8633 0041-8633 S0041-86332020000100437 10.22201/iij.24484873e.2020.157.15238 Brazil Brasil 00 04 2020 00 04 2020 53 157 437 453 2018 2000 37 148 148 2006 2018 2002 2018 2017 2005 2018 2019 2018