1576-5962
1576-5962
S1576-59622018000300002
10.5093/jwop2018a16
Portugal
Portugal
Italy
00
00
2018
00
00
2018
34
3
135
144
[
2016
]
[
2004
77
439-61
]
[
1996
49
252-76
]
[
2016
36
157-83
]
[
2005
9
189-204
]
[
2010
]
[
2004
25
951-68
]
[
2006
49
49-68
]
[
1985
]
[
1991
18
3
3
19-31
]
[
1999
8
9-32
]
[
1994
]
[
2009
]
[
2005
90
468-82
]
[
2012
2
3
3
66-80
]
[
1964
]
[
2000
349-81
]
[
2009
21
216-32
]
[
1999
2
49-68
]
[
1978
]
[
2010
2nd ed
]
[
1997
23
239-90
]
[
2000
14
389-405
]
[
2016
]
[
1990
75
107-16
]
[
2008
1
1
1
4-24
]
[
2009
62
461-73
]
[
1996
3-24
]
[
1987
315-42
]
[
2012
33
428-44
]
[
2005
30
269-87
]
[
2013
24
1918-27
]
[
2002
87
474-87
]
[
2011
11
3
3
17-28
]
[
2005
56
517-43
]
[
2005
29
295-323
]
[
2004
89
755-68
]
[
2003
88
246-55
]
[
2004
47
175-92
]
[
2000
]
[
2011
3rd ed
]
[
2015
555-71
]
[
2006
7
77-124
]
[
2004
611-21
]
[
2013
19
293-313
]
[
2011
I
125-46
]
[
2017
102
452-67
]
[
2008
34
410-76
]
[
1991
22
147-74
]
[
1991
1
61-89
]
[
2004
]
[
2004
89
991-1007
]
[
2013
]
[
2012
22
143-64
]
[
2010
76
567-79
]
[
2010
95
744-51
]
[
2007
]
[
2016
]
[
2002
13
561-81
]
[
1990
1
107-42
]
[
2009
15
343-56
]
[
2008
40
879-91
]
[
2008
17
227-44
]
[
2010
35
751-81
]
[
2006
99
323-38
]
[
2009
20
279-91
]
[
1996
503-29
]
[
2008
68
319-33
]
[
1965
63
384-99
]
[
2011
]
[
2017
33
109-14
]
[
2004
9
165-75
]
[
2015
23
427-39
]
[
2012
8th Edition
]
[
2001
12
451-83
]
[
2013
24
94-105
]