1390-9274
1390-9274
S1390-92742017000100137
10.18537/est.v006.n010.09
Spain
00
06
2017
00
06
2017
6
10
137
154
[
2001
]
[
2001
]
[
2003
]
[
2009
]
[
2006
]
[
1973
]
[
1952
5
73-82
]
[
1985
9,
10
]
[
1988
]
[
1988
24
40-9
]
[
1992
34
]
[
1992
45
]
[
1994
7
]
[
1988
33
]
[
2008
34
]
[
2009
]
[
2010
26
52-61
]
[
2013
]
[
2014
]
[
2008
]
[
1997
]
[
1990
23
12-7
]
[
2010
]
[
2014
Madrid
978-86
]
[
2014
175-90
]
[
1997
15
211-3
]