1517-9702 1517-9702 S1517-97022016000300803 10.1590/S1517-9702201609148223 Brasil 00 09 2016 00 09 2016 42 3 803 818

38 3 3 391-405 123-36 17 49 49 1-17 UNESCO UNESCO 85-8 27 1 1 47-68 23 23 163-77 3 12 12 241-50