0185-1667
0185-1667
S0185-16672016000100125
10.1016/j.inveco.2016.03.004
Portugal
Portugal
00
03
2016
00
03
2016
75
295
125
156
[
1987
69
4
4
567-74
]
[
2004
13
1
1
57-87
]
[
2001
66
1
1
51-86
]
[
2007
30
83-104
]
[
2011
101
1312-44
]
[
2001
30
8
8
1185-201
]
[
1999
47
1-25
]
[
2002
64
1
1
3-15
]
[
2011
78
1
1
191-210
]
[
1996
44
2
2
p.187-204
]
[
2010
146
4
4
657-89
]
[
2007
1-37
]
[
2010
28
4
4
372-6
]
[
2011
42
1
1
56-75
]
[
2005
26
6
6
555-75
]
[
1989
99
569-96
]
[
2010
33
3
3
374-98
]
[
1995
62
53-82
]
[
2013
41
1
1
219-40
]
[
2009
40
8
8
1260-76
]
[
2011
63
2
2
279-306
]
[
1993
24
2
2
198-211
]
[
2008
144
4
4
750-73
]
[
1997
35
3
3
1243-72
]
[
2011
42
362-80
]
[
2006
22
4
4
483-98
]
[
1990
100
1
1
105-18
]
[
1994
46
1
1
102-24
]
[
1979
10
92-116
]
[
1980
70
2
2
343-8
]
[
1995
3
1279-337
]
[
2011
43
22-24
22-24
3007-20
]
[
1995
23
7
7
1171-93
]
[
2012
]
[
2010
]
[
1979
87
2
2
253-66
]
[
2006
58
2
2
317-50
]
[
2006
4
1
1
27-48
]
[
2013
]
[
1981
45
2
2
110-22
]
[
1999
]
[
1990
98
5
5
71-102
]
[
2002
31
7
7
1087-102
]
[
2006
4
2
2
135-64
]
[
2005
26
9
9
855-71
]
[
2005
14
2
2
431-61
]
[
2006
31
4
4
914-33
]
[
2011
32
10
10
1046-60
]
[
2000
43
6
6
1227-47
]
[
2013
72
283
283
135-61
]
[
1966
82
2
2
190-207
]
[
1986
15
6
6
285-305
]
[
1998
26
7-8
7-8
829-41
]