0120-6346
0120-6346
S0120-63462020000200047
10.22395/seec.v23n55a2
Spain
00
12
2020
00
12
2020
23
55
47
66
[
1989
]
[
1837
3
]
[
1992
]
[
1996
2
]
[
2005
]
[
1974
]
[
2008
3
]
[
1938
]
[
1994
]
[
1990
]
[
1962
]
[
1996
]
[
1936
]
[
1890
]
[
1820
]
[
1998
]
[
1890
]
[
1867
]
[
1848
]
[
1871
]
[
1826
]
[
1848
]
[
1940
]
[
1949
]
[
2014
26
16
16
173-90
]
[
2013
69
69
127-51
]
[
1920
]
[
1923
]
[
1971
]
[
2013
]
[
1817
]
[
1932
]
[
1755
]
[
1947
]
[
2010
a
]
[
2010
b
5
5
143-62
]
[
2012
]
[
2013
71
139
139
359-80
]
[
2014
]
[
2015
]
[
2016
]
[
2018
75
185
185
529-53
]
[
2019
a
]
[
2019
b
57
57
12-41
]
[
2020
24
24
293-318
]
[
2020
23
5
5
1-8
]
[
2019
161-92
]
[
1803
]
[
1821
]