0871-9187
0871-9187
S0871-91872020000200159
10.21814/rpe.17699
Portugal
Portugal
Portugal
31
12
2020
31
12
2020
33
2
159
176
[
2004
20
6
6
711-26
]
[
2000
53
4
4
537-50
]
[
2008
51
3
3
1375-91
]
[
2012
28
5
5
1947-53
]
[
2016
2
2
2
1-10
]
[
2016
118-32
]
[
2001
17
2
2
187-95
]
[
1999
]
[
2010
22
91-6
]
[
2000
16
4
4
441-9
]
[
2007
5
1
1
34-47
]
[
2010
10
2
2
187-97
]
[
2014
13
6
6
1-6
]
[
2008
78
3
3
165-71
]
[
2008
3rd ed.
114-58
]
[
2007
10
4
4
545-51
]
[
2006
22
283-93
]
[
2004
7
3
3
333-48
]
[
1997
18
25-46
]
[
2006
vol. I
2.ª ed.
15-32
]
[
2014
27
599--614
]
[
2007
3.ª ed
]
[
2007
31
4
4
809-20
]
[
2018
16
3
3
680-91
]
[
2010
26
6
6
1531-5
]
[
2012
8
3
3
327-51
]
[
2016
]
[
2014
3
2
2
107-14
]
[
2019
272
340-8
]
[
2014
26
1
1
54-61
]
[
2014
32
4
4
484-95
]
[
2016
151-67
]
[
2010
22
4
4
301-10
]
[
2006
4.ª ed.
]
[
2014
35
85-92
]
[
2016
31
4
4
442-73
]
[
2009
167
3
3
294-9
]
[
2001
29
4
4
391-8
]
[
2009
9
1
1
109-22
]
[
2001
24
1
1
13-27
]
[
2016
204
3
3
221-5
]
[
1998
1
3
3
237-44
]
[
2004
48
4
4
402-15
]
[
2011
19-34
]