1390-860X
1390-860X
S1390-860X2017000200015
10.17163/ings.n17.2017.02
Ecuador
México
Ecuador
00
06
2017
00
06
2017
17
15
22
[
1975
43
1083-6
]
[
1996
17
307-10
]
[
2015
]
[
2002
45
855-63
]
[
2005
90
298-301
]
[
2014
16
19-28
]
[
2000
21
58-64
]
[
2006
99
]
[
2001
]
[
2008
79
]
[
2002
23
571-80
]
[
2006
]
[
2007
31
6
6
593-9
]
[
2016
]
[
1962
1
187-91
]
[
1881
1
435
]
[
1972
824
]
[
2003
]