1981-0431 1981-0431 S1981-04312015000300645 10.2015/lcv21n46.645 Brazil 00 09 2015 00 09 2015 21 46 645 664

23 23 23 119-35 6 2 2 10-32 94 94 73-92 16 1 1 87-102 36 36 455-72 22 2 2 43-52 27 94 94 47-69 8 3 3 34-51 9 1 1 60-70 8 2 2 1-22 1 1 1 69-73