1990-8644
1990-8644
S1990-86442021000100194
Ecuador
00
02
2021
00
02
2021
17
78
194
200
[
1984
11
203-9
]
[
2007
]
[
1976
3
2
2
107-12
]
[
1998
]
[
1989
]
[
1996
106
438
438
1386-97
]
[
2014
]
[
1970
78
2
2
193-238
]
[
1983
48
692-710
]
[
1994
4
4
4
409-21
]
[
2001
35
1
1
45-72
]
[
1986
11
4
4
815-27
]
[
2014
30
132
132
287-300
]
[
2002
80
12
12
56-68
]
[
1996
36
217-31
]
[
2012
11
1
1
102-19
]
[
1996
14
5
5
5-13
]
[
1975
2
3
3
188-96
]