2550-6722
2550-6722
S2550-67222018000300005
Ecuador
00
04
2018
00
04
2018
4
5
15
[
1988
14
28
28
55-68
]
[
1978
49-52
]
[
2015
]
[
2012
]
[
2005
]
[
1969
XXIX
4
4
1039-64
]
[
2011
16
54
54
17-39
]
[
1955
]
[
1981
]
[
2006
]
[
2010
]
[
2017
3
]
[
1986
12
189-212
]
[
2016
]
[
1978
9-21
]
[
2012
145
10-28
]
[
2015
1925-75
]
[
2000
]
[
2005
]
[
2016
]
[
2017
]
[
2017
]
[
2007
26
102-13
]
[
2014
18
231-51
]