2183-5462 2183-5462 S2183-54622021000100009 10.14195/2183-5462_38_0 Portugal 30 06 2021 30 06 2021 21 38 9 12 2013 1 2016 18 1 1 3-10 2016 39 1 1 39-56 2011 32 2 2 49-61