1607-4041
1607-4041
S1607-40412021000100026
10.24320/redie.2021.23.e26.3839
Spain
Spain
00
00
2021
00
00
2021
23
[
2014
41
327-41
]
[
2018
24
1
1
1-21
]
[
2020
23
1
1
45-74
]
[
2014
7
2
2
28-52
]
[
2016
11
11
11-21
]
[
2006
]
[
2015
155-70
]
[
2018
9
16-30
]
[
2008
4
3
3
183-93
]
[
2017
]
[
2003
1
1
1
3-7
]
[
2019
35
89-2
89-2
1317-48
]
[
2013
31
2
2
517-36
]
[
2015
82
1-10
]
[
2017
16
1
1
7-20
]
[
2010
5
1
1
56-70
]
[
2018
19-36
]
[
2018
103
2
2
175-98
]
[
2019
]
[
2010
80
1
1
92-113
]
[
2013
63
240-7
]
[
2015
81
81
345-53
]
[
2014
31
220-31
]
[
2018
]
[
2018
10
12
12
1-16
]
[
2007
49
2
2
460-80
]
[
2010
41
6
6
1029-42
]
[
2019
24
1
1
911-28
]
[
2005
5
]
[
OECD
2011
]
[
2016
42
2
2
137-62
]
[
2016
24
49
49
71-9
]
[
2017
16
6
6
762-80
]
[
2019
50
6
6
1-15
]
[
2018
34
34
44-58
]
[
2009
4
2
2
107-25
]
[
2007
]
[
2018
23
3
3
1203-18
]
[
2016
19
19
58-84
]
[
2017
25
25
17-33
]
[
UNESCO
2008
]
[
Unión Europea
2018
]
[
2013
63
63
218-26
]
[
2015
]
[
2008
51
3
3
1392-404
]
[
2018
33
3-4
3-4
94-106
]
[
2011
56
3
3
736-46
]