0870-8231
0870-8231
S0870-82312021000100107
10.14417/ap.1823
Portugal
USA
30
06
2021
30
06
2021
39
1
107
131
[
2020
]
[
2010
]
[
2015
77
201-10
]
[
1999
31
578-602
]
[
2009
116
463-98
]
[
2001
29
639-47
]
[
2000
65
23-8
]
[
1957
55
1-5
]
[
2019
51
467-79
]
[
2006
61
26-33
]
[
2010
42
474-80
]
[
1998
10
1-34
]
[
2004
2
49-76
]
[
2011
9
23-34
]
[
2008
45
188-96
]
[
2006
27
915-24
]
[
2004
36
371-83
]
[
CLUL
2019
]
[
2014
46
564-74
]
[
2007
60
1072-82
]
[
2019
72
2302-12
]
[
2012
]
[
2010
42
1042-8
]
[
2008
6
49-74
]
[
2007
61
35-43
]
[
2017
12
]
[
2019
]
[
2020
38
257-69
]
[
2008
40
1049-54
]
[
2003
1
21-44
]
[
2011
9
67-93
]
[
2010
8
81-99
]
[
2018
]
[
2009
7
3-19
]
[
2017
25
2-18
]
[
2001
]
[
2003
32
91108
]
[
2010
53
638-46
]
[
2015
48
272-84
]
[
2003
10
785-813
]
[
1973
12
471-80
]
[
2003
1
67-76
]
[
2013
45
160-8
]
[
2011
140
14-34
]
[
2011
43
97-109
]
[
2013
39
802-23
]
[
1993
47
61-78
]
[
2010
8
101-19
]
[
1997
32
35-55
]
[
2002
a
36
35-43
]
[
2002
b
]
[
2004
2
5-19
]
[
2005
1
65-75
]
[
2013
a
11
19-28
]
[
2013
b
]
[
2007
39
439-44
]
[
2004
30
605-14
]
[
2005
]
[
1995
11
39-41
]
[
2013
24
2099-105
]
[
2003
25
341-58
]
[
2000
28
887-99
]
[
1998
]
[
1991
45
255-87
]
[
1968
76
1
1
1-25
]
[
2019
51
453-66
]
[
2014
12
69-78
]
[
2008
6
25-47
]
[
2012
40
1095-108
]
[
1995
21
803-14
]
[
1986
14
79-94
]
[
2015
44
81-108
]
[
2012
44
380-94
]
[
2019
51
1258-70
]
[
2017
97
1-30
]
[
2012
44
256-69
]
[
2017
49
1065-81
]
[
2014
27
110-23
]
[
2015
68
680-96
]
[
2014
46
240-53
]
[
2013
45
1168-81
]
[
2005
1
41-63
]
[
2020
52
1108-21
]
[
2008
102
597-600
]
[
1988
20
6-10
]