1982-9949 1982-9949 S1982-99492020000200251 10.17058/rea.v28i2.13058 Brazil Brazil 00 05 2020 00 05 2020 28 2 251 262

2010 2016 BRASIL 1996 2011 7 2008 08 02 02 176-89 2017 2020 25 1-18 2006 2006 2010 173-99 1986 2008