2631-2654
2631-2654
S2631-26542018000200030
10.37135/unach.ns.001.02.03
Ecuador
Spain
Ecuador
00
11
2018
00
11
2018
1
2
30
37
[
2018
66
9
9
4391-406
]
[
2004
]
[
2012
]
[
2017
16
3009-13
]
[
2010
]
[
2018
]
[
2013
55
2
2
280-8
]
[
2015
14
1412-4
]
[
1973
21
1
1
116-9
]
[
2013
3330-3
]
[
2015
]
[
2012
60
3
3
1261-8
]
[
2009
]
[
2017
]
[
2013
39
]