1676-2592 1676-2592 S1676-25922018000200539 10.20396/etd.v20i2.8647105 Brasil Brazil 00 06 2018 00 06 2018 20 2 539 554

36 2 2 144-55 48 48 101-23 35 3 3 193-211 37 135 135 425-43 5 02 02 463-70