1982-9949 1982-9949 S1982-99492018000300022 10.17058/rea.v26i3.12495 Brasil Brasil Brasil 00 09 2018 00 09 2018 26 3 22 33

1 2017 18 18 253-62 2 1992 3 1978 2. 4 2016 5 1988 6 2007 4 2 2 122-33 7 2008 8 1974