1409-4258
1409-4258
S1409-42582018000200160
10.15359/ree.22-2.10
Colombia
Colombia
Colombia
Colombia
00
08
2018
00
08
2018
22
2
160
178
[
1991
50
2
2
179-211
]
[
2012
2
14
14
114-20
]
[
1977
84
2
2
191-215
]
[
1988
13
3
3
442-53
]
[
2014
38
5
5
981-1000
]
[
2016
22
02
02
1-21
]
[
2006
62
62
12-39
]
[
2015
13
4
4
452-76
]
[
2012
19
3
3
424-40
]
[
2004
24
2
2
105-12
]
[
2014
23
1
1
1-18
]
[
2012
17
1907-13
]
[
2002
]
[
2000
15
5-6
5-6
411-32
]
[
2002
19
1
1
7-28
]
[
2013
33
33
73-103
]
[
2015
11
4
4
935-57
]
[
2012
17
3
3
613-9
]
[
2013
55
5
5
527-31
]
[
2016
24
2
2
337-50
]
[
2016
8
2
2
162-79
]
[
2013
17
3
3
259-76
]
[
2013
]
[
2013
6
3
3
385-401
]
[
2013
7
2
2
152-65
]
[
2009
41
1
1
109-19
]
[
2011
7
2
2
239-54
]
[
1982
72-90
]
[
2016
1-17
]
[
2012
17
57
57
132-48
]
[
2015
36
5
5
7
]
[
2015
68
3
3
639-53
]
[
2014
10
3
3
623-41
]