2238-121X 2238-121X S2238-121X2016000400137 10.15600/2238-121X/comunicacoes.v23nespp137-150 Brazil Brazil Brazil 00 09 2016 00 09 2016 23 3 137 150

17 1 1 104-18 17 50 50 399-417 3 3 3 393-405 20 20 5-12