2218-3620
2218-3620
S2218-36202021000600331
Ecuador
Serbia
00
12
2021
00
12
2021
13
6
331
343
[
2012
]
[
2018
1
2
2
35-45
]
[
2017
8
7
7
1603-17
]
[
2018
1
1
1
38-48
]
[
2009
edición especial
21-34
]
[
2016
8
4
4
191-205
]
[
2000
]
[
2021
4
2
2
123-37
]
[
2019
15
67
67
250-8
]
[
2018
16
1
1
122-39
]
[
2014
4
7
7
30-42
]
[
2003
]
[
2020
16
72
72
83-8
]
[
2018
5
1
1
1-2
]
[
2001
2
1
1
]
[
2012
1
1
1
]
[
2015
4
1
1
60-6
]
[
2018
7
30
30
172-200
]
[
2017
23
1
1
9-17
]
[
2018
6
12
12
21-7
]
[
2017
1
37
37
1-14
]