1981-2582 1981-2582 S1981-25822015000100070 10.15448/1981-2582.2015.1.18464 Brazil Brazil 00 04 2015 00 04 2015 38 1 70 76

17 6 6 719-34 43 4 4 669-76 18 5 5 699-717 30 59 59 69-75 8 2 2 191-211 11 21 21 1-6 1 1 41-66