1982-596x 1982-596x S1982-596x2017000100083 10.14393/REVEDFIL.issn.0102-6801.v31n61a2017-p83a105 Brazil 00 04 2017 00 04 2017 31 61 83 105

19 32 32 253-72 18 1 1 161-77 27 27 336-37 15 1 1 179-87