1676-2592 1676-2592 S1676-25922016000100071 10.20396/etd.v18i1.8635719 Brazil Brazil 00 04 2016 00 04 2016 18 1 71 82

20 6 6 56 4 4 10 1 1 34 6 6 51 3 3 21 2 2 16 2 2 44 2 2 41 3/4 3/4 1 25 1 1