1982-9949 1982-9949 S1982-99492020000200073 10.17058/rea.v28i2.14230 Brazil Brazil 00 05 2020 00 05 2020 28 2 73 88

1995 2014 2005 2012 2012 235-41 2013 2010 3 1977 2010 1986 2 2017 2017 2013 3 3 3 859-78 2009 12 2008 2013 2 2014 2012 1987