0120-5307
0120-5307
S0120-53072017000200232
10.17533/udea.iee.v35n2a12
Colombia
00
08
2017
00
08
2017
35
2
232
242
[
2012
18
4
4
132-9
]
[
2004
13
1
1
137-46
]
[
2013
34
4
4
170-7
]
[
2012
12
2
2
134-43
]
[
2013
21
4
4
935-40
]
[
2004
22
1
1
50-61
]
[
2009
27
1
1
96-102
]
[
2012
76-7
]
[
2012
12
3
3
241-51
]
[
2013
233-7
]
[
1990
3-16
]
[
2012
11
1
1
7-22
]
[
2011
18
5
5
1-7
]
[
2006
15
54
54
7-9
]
[
2007
16
57
57
55-9
]
[
2012
12
1
1
62-76
]
[
2012
19
1
1
14-8
]
[
2013
14
2
2
229-48
]
[
2014
23
12
12
57-69
]
[
2000
26
4
4
217-22
]
[
2007
25
2
2
60-71
]
[
2005
5
1
1
128-37
]
[
2015
11
1
1
37-49
]
[
2012
12
1
1
9-17
]
[
2011
10
22
22
]