0212-9728
0212-9728
S0212-97282021000100016
10.6018/analesps.37.1.414411
Ecuador
Spain
00
04
2021
00
04
2021
37
1
142
148
[
2019
35
214-24
]
[
2017
61
544-54
]
[
2014
34
157-64
]
[
2018
19
1247-60
]
[
2006
47
315-24
]
[
2014
2
20-39
]
[
2016
27
99-115
]
[
2013
50
480-8
]
[
2015
4
308-14
]
[
2014
132
114-20
]
[
2012
7
1-15
]
[
2013
29
2589-94
]
[
2013
29
1664-70
]
[
2012
28
444-9
]
[
2011
82
239-43
]
[
2013
25
38-42
]
[
2014
11
521-31
]
[
2014
17
1-10
]
[
2017
29
29-34
]
[
2011
6
31-44
]
[
2010
]
[
2018
88
423-33
]
[
2004
82
291-305
]
[
2014
34
44-53
]
[
2012
28
39-48
]
[
2015
203
244-50
]
[
2014
85
97-101
]
[
2014
8
71-386
]
[
2014
33
8-15
]
[
2008
15
319-27
]
[
2017
397-409
]
[
2016
14
113-21
]
[
2016
28
137-42
]
[
2019
173
770-9
]
[
2016
9
4-14
]
[
2004
591
40-54
]
[
2006
29
891-909
]
[
2008
12
85-92
]
[
2004
23
603-19
]
[
2006
1
17-26
]
[
2004
]
[
2011
6
377-88
]
[
2014
4
73-80
]
[
2016
28-36
]
[
2014
134
21-8
]
[
2012
]
[
2016
51
156-62
]
[
2017
46
1667-72
]
[
2013
42
15-21
]
[
2014
134
1-6
]
[
2014
37
33-6
]
[
2012
52
637-42
]
[
2014
37
1387-91
]
[
2016
123
1-25
]
[
2007
]
[
2019
39
864-903
]
[
2012
5
317-34
]
[
2014
55
757-64
]
[
2018
22
501-19
]
[
2020
52
115-30
]
[
1994
]