2238-121X 2238-121X S2238-121X2016000400259 10.15600/2238-121X/comunicacoes.v23nespp259-273 Brazil 00 09 2016 00 09 2016 23 3 259 273

16 1 1 93-9 10 2 2 175-82 22 22 9-39 1 3 3 53-62