2393-6886 2393-6886 S2393-68862020000200115 10.29112/ruae.v5.n2.6 Uruguay 00 00 2020 00 00 2020 5 2 115 123 2017 125-30 1971 2019 2005 2008, 2017 2006 2011 2017 121-4 2003