2182-4452 2182-4452 S2182-44522020000200129 10.31492/2184-2043.rilp2020.38/pp.129-143 Portugal 31 12 2020 31 12 2020 38 129 143

1 2010 41 301-27 2 1993 3 2007 79-99 4 1984 5 2002 VI 2 2 367-78 6 1998 7 1991 8 1998 9 1996 10 2006 11 1969