1982-9949 1982-9949 S1982-99492021000100020 10.17058/rea.v29i1.14283 Brazil Brazil 00 01 2021 00 01 2021 29 1 20 33

2015 22 2 2 102-14 2007 53-86 1994 2012 2016 2013 2004 2013 2013