1990-8644
1990-8644
S1990-86442019000200089
Ecuador
00
06
2019
00
06
2019
15
67
89
96
[
2001
]
[
2004
]
[
2004
6
9
9
25-34
]
[
2000
22
70-7
]
[
1992
]
[
2002
]
[
2001
]
[
2008
]
[
1997
36
2
2
5-31
]
[
2007
]
[
2006
]
[
1994
1
2
2
23-42
]
[
2007
La Habana
]
[
1998
]
[
2001
]
[
1890
]
[
2004
57
8
8
643-56
]
[
1994
5
1
1
14-37
]
[
1995
]
[
2006
]
[
2003
24
3
3
403-33
]
[
2005
85
81-100
]
[
2011
]
[
2000
]