1676-2592 1676-2592 S1676-25922017000500669 10.20396/etd.v19i4.8648729 Brazil 00 12 2017 00 12 2017 19 4 669 690

25 2 (74 2 (74 83-101 33 2 2 157-76 28 101 101 1287-302