1982-9949 1982-9949 S1982-99492020000100021 10.17058/rea.v28i1.11711 Brasil Brasil Brazil 00 01 2020 00 01 2020 28 1 21 33

2011 2011 3 1998 2007 2 1968 2005 2004 2009 2006 2009 2012 2010 2009 2000 3 2009 2003 2009 2015 2008 9 9 131-52