0874-6885 0874-6885 S0874-68852020000200165 10.34619/qwbn-p729 Portugal Brazil 31 12 2020 31 12 2020 44 165 172 CIG 2013 2008 8 8 2016 29 4 4 2016 2014 26 1 1 2008 9 73-102 2016 2017 48 3 3 206-23 ONU 1995 2000 2016 2015