0212-9728
0212-9728
S0212-97282018000100021
10.6018/analesps.34.1.294781
Spain
United Kingdom
00
00
2018
00
00
2018
34
1
167
172
[
2016
20
1
1
13-22
]
[
2012
12
S2
S2
57-62
]
[
2014
132
343-50
]
[
1986
14
4
4
341-2
]
[
2001
25
1517-24
]
[
2015
7
3
3
257-66
]
[
2016
11
1
1
97-105
]
[
2017
26
1
1
29-39
]
[
2013
22
2
2
371-6
]
[
1988
2nd
]
[
2010
19
1
1
23-39
]
[
2009
66
511-21
]
[
2001
1
3
3
16-25
]
[
2013
15
1
1
54-63
]
[
2006
33
5-6
5-6
536-45
]
[
2013
22
2
2
429-36
]
[
2015
15
2
2
135-42
]
[
2016
5
2
2
83-8
]
[
2017
]
[
2017
6
1
1
67-74
]
[
2016
32
2
2
349-54
]
[
2012
3
62-79
]
[
2013
22
1
1
135-42
]
[
2008
8
1
1
171-83
]
[
2004
39
155
155
571-92
]
[
2000
28
1
1
43-57
]
[
2013
2
11
11
123-39
]
[
2016
11
5
5
e0154784
]
[
2003
15-16
65-74
]
[
2010
22
1
1
77-83
]
[
2012
41
1
1
101-10
]
[
1976
46
3
3
407-41
]
[
1983
115-20
]
[
2010
26
3
3
144-54
]
[
2010
10
S
S
51-6
]
[
2016
47
1
1
67-80
]
[
2016
25
1
1
97-104
]
[
2015
14
2
2
759-69
]