0873-3015 0873-3015 S0873-30152020000500023 10.29352/mill0206e.02.00346 Portugal Portugal 00 11 2020 00 11 2020 esp6 23 32

2008 2016 2010 1997 2 6 6 90-113 1938 1959 2002 2014 2003 2018 46 4 4 385-92 2001 2002 Ministério da Educação 2006 2019 16 2 2 107-22 2015 20 224-33 1994 2016 17 1 1 54-67 2017 49 2 2 144-56 2019 27 1 1 151-62 2009