1699-714X 1699-714X S1699-714X2020000300262 10.4321/s1699-714x2020000300021 Portugal 00 09 2020 00 09 2020 30 3 262 263 2017 39 4 4 818-25 2006 42 4 4 616-7 2005 6 R. P. S. of G. 2013 66 2013 1 2 2 119-25 2008 2013 34 1 1 79-85 2012 25 1 1 11-8