1981-0431 1981-0431 S1981-04312015000300708 10.2015/lcv21n46.708 Brazil Brazil Brazil 00 09 2015 00 09 2015 21 46 708 726

12 2 2 73-81 8 8 432-43 3 3 30 2 2 11-22 18 35 35 209-26 81 6 6 331-40 9 1 1 119-31