0120-2812
0120-2812
S0120-28122017000200248
10.15446/acag.v66n2.54598
Spain
Ecuador
00
06
2017
00
06
2017
66
2
248
253
[
2007
13
3
3
197-204
]
[
2009
37-70
]
[
2008
9
512-31
]
[
2011
43
2
2
101-8
]
[
1976
7
1-2
1-2
248-54
]
[
2007
355
317-42
]
[
2003
35
3
3
494-500
]
[
2004
4
12
12
3665-85
]
[
2004
4
1903-8
]
[
2014
14
1
1
381-7
]
[
2008
8
5
5
948 -960
]
[
1970
227
680-5
]
[
1996
34
573-94
]
[
2004
4
9
9
2522-32
]
[
2008
7
4095- 4106
]
[
1986
61
2
2
265-76
]
[
1996
68
5
5
850-8
]
[
2003
24
14
14
2369-75
]