0120-4483
0120-4483
S0120-44832017000300245
10.1016/j.espe.2017.11.002
Ecuador
00
12
2017
00
12
2017
35
84
245
259
[
2004
1
60-88
]
[
2013
1
15-52
]
[
2015
1-10
]
[
2005
14
]
[
2006
]
[
2007
]
[
1973
136
3
3
337-52
]
[
2008
98
1943-77
]
[
2015
8
59-71
]
[
2010
]
[
2016
11-4
]
[
2010
]
[
2010
5
1
1
]
[
2010
5
]
[
2017
]
[
2008
]
[
2008
8
]
[
2013
5
281-99
]
[
2010
2
1
1
]
[
2008
670
]
[
2016
]
[
1993
2
]
[
2009
97
]
[
2008
-1
0-
]
[
1991
]
[
2006
570
]
[
1998
22
3
3
393-426
]
[
2006
283
]
[
2011
]
[
2007
722
1
1
9-25
]
[
2012
8
2
2
69-83
]
[
2008
175
]
[
2016
63
]