2007-3364
2007-3364
S2007-33642016000300491
10.12933/therya-16-414
Ecuador
Ecuador
00
09
2016
00
09
2016
7
3
491
498
[
2012
]
[
2015
7
B13-6
]
[
1923
55
1-14
]
[
2012
30
83-119
]
[
2015
55
261-8
]
[
1961
4
309-732
]
[
2012
19
303-9
]
[
2016
11
1-18
]
[
2000
403
853-8
]
[
2003
]
[
2011
76
657-61
]
[
2014
42
540-51
]
[
2013
20
421-4
]
[
1893
23
333-41
]
[
2007
]
[
2011
]
[
1982
47
364-9
]
[
1988
188
259- 493
]
[
2015
]