1688-7026
1688-7026
S1688-70262018000200005
10.26864/pcs.v8.n2.2
Spain
00
11
2018
00
11
2018
8
2
5
24
[
2014
4
4
4
156-69
]
[
2016
3
7
7
619-27
]
[
2017
42
11
11
2105-13
]
[
2015
14
2
2
158-60
]
[
1997
29
2
2
213-6
]
[
2016
30
12
12
1181-97
]
[
1979
]
[
2013
368
1615
1615
20120407
]
[
2007
]
[
2003
160
1
1
4-12
]
[
2010
]
[
1993
]
[
2017
38
11
11
992-1005
]
[
2008
]
[
2009
29
1
1
]
[
2017
101
2
2
209-19
]
[
2014
69
2
2
221-50
]
[
2013
170
1
1
59-70
]
[
1970
126
7
7
983-7
]
[
2014
8
]
[
2018
8
]
[
2016
30
12
12
1165-80
]
[
1968
1
2
2
96-111
]
[
2007
1
517-44
]
[
2015
1st
3-24
]