1809-3876 1809-3876 S1809-38762020000401733 10.23925/1809-3876.2020v18i4p1733-1747 Portugal 00 10 2020 00 10 2020 18 4 1733 1747

2005 2017 2019 2019 2017 2003 2013 6 2 2 4-14 2016 14 3 3 809-36 1981 2020 2005 2007 2009 2005 2 10 10 2016 36-48 1998