1809-3876 1809-3876 S1809-38762016000401499 10.23925/1809-3876.2016v14i4p1499 Brazil Brazil 00 12 2016 00 12 2016 14 4 1499 1526

8 1 1 113-40 42 13-79 4 1 1 35-51 46 73-83 26 1 1 33-58