2631-2581
2631-2581
S2631-25812018000300077
Ecuador
Ecuador
00
12
2018
00
12
2018
27
3
77
81
[
2017
]
[
2016
1
1
1
17-20
]
[
2013
]
[
2017
29
4
4
308-18
]
[
2018
26
4
4
396-412
]
[
2004
]
[
2014
10
7
7
1277-97
]
[
2017
11
7
7
TD08-9
]
[
2018
]
[
2018
]
[
2004
90
9
9
1691-6
]
[
2007
9
9
9
590-5
]
[
2018
66
4
4
846-61
]
[
2009
193
1
1
192-206
]
[
2015
3.a ed
]
[
2013
119
1
1
226-32
]
[
2007
2
7
7
]
[
1999
160
1
1
66-77
]
[
2012
83
1
1
369-75
]
[
2016
36
]
[
2012
32
5
5
1343-59
]
[
Sociedad Iberoamericana de Información Científica
2014
1
]
[
2008
72
4
4
1168-73
]
[
2003
]
[
1991
12
1
1
45-62
]
[
2010
78
4
4
1244-52
]
[
2014
32
9
9
949-59
]
[
2011
41
1
1
121-4
]
[
2011
103
1
1
111-9
]
[
2018
]
[
2018
]