0120-5307
0120-5307
S0120-53072016000300444
10.17533/udea.iee.v34n3a03
Colombia
00
12
2016
00
12
2016
34
3
444
455
[
2010
19
4
4
240-4
]
[
2000
18
1
1
124-7
]
[
2008
1
]
[
2007
3
5
5
43-66
]
[
2006
143-60
]
[
2002
3
]
[
2003
]
[
2002
2
2
2
137-44
]
[
2013
]
[
2004
]
[
2008
31
1
1
E28-40
]
[
2006
]
[
2006
]
[
2003
44
3
3
229-30
]
[
2013
13
2
2
146-7
]
[
2006
105-21
]
[
2006
]
[
2009
3
1
1
77-86
]
[
2015
283-91
]
[
1996
10
3
3
151-6
]
[
2004
13
44-45
44-45
18-20
]
[
2011
19
2
2
99-103
]
[
2002
346
22
22
1715-22
]
[
2013
31
1
1
44-53
]
[
2011
19
2
2
99-103
]