1982-7199 1982-7199 S1982-71992018000100199 10.14244/198271992124 Brazil Brazil Brazil 00 04 2018 00 04 2018 12 1 199 217

33 2 2 27-36 23 3 3 369-85 16 16 79-86 41 41 61-79 71 71 197-220 1 1 7-17 71 71 45-78