2007-3364
2007-3364
S2007-33642016000300483
10.12933/therya-16-408
Ecuador
Ecuador
00
09
2016
00
09
2016
7
3
483
489
[
2000
133
167-70
]
[
1953
34
]
[
2010
16
755-66
]
[
2000
7
181-2
]
[
2014
1
14-5
]
[
1925
6
]
[
1999
7
195-7
]
[
2014
74
366-8
]
[
1958
39
306
]
[
1968
49
]
[
1997
4
47-9
]
[
1987
32
5-11
]
[
1978
66
112-7
]
[
1981
72
144-6
]
[
2008
29
28-30
]
[
2010
65
67-76
]
[
2013
4
641-5
]
[
2005
66
5-7
]
[
2001
55
2097-104
]
[
1964
9
104-5
]
[
2009
22
243-6
]
[
1992
134
22-6
]
[
1995
109
263-4
]
[
1995
76
1013-9
]
[
1995
361
1-5
]
[
1954
66
]
[
2005
12
269-70
]
[
1960
41
129
]
[
2012
49
306-8
]
[
1967
12
197-8
]
[
2009
123
167-8
]