0121-246X
0121-246X
S0121-246X2017000200211
10.17533/udea.rfo.v29n1a11
Colombia
Colombia
Colombia
00
12
2017
00
12
2017
29
1
211
221
[
2011
6
1
1
37-9
]
[
1982
10
3
3
177-81
]
[
2014
2014
]
[
2013
4
3
3
196-201
]
[
2002
93
2
2
171-3
]
[
1995
24
5
5
363-4
]
[
2001
10
4
4
189-91
]
[
2007
73
5
5
431-4
]
[
2008
13
2
2
382-5
]
[
2003
32
1
1
49-53
]
[
2014
6
3
3
185-7
]
[
2008
132
1
1
81-3
]
[
2006
42
10
10
301-4
]
[
2010
267
3
3
459-65
]
[
2007
2
]
[
2004
9
2
2
166-7
]
[
2006
11
5
5
E437-9
]
[
2007
111
3
3
754-8
]
[
2004
98
4
4
441-50
]
[
2012
7
]
[
1974
34
3
3
720-7
]
[
2004
33
^s4
^s4
4
72-6
]
[
1995
22
1
1
83-5
]
[
1978
7
3
3
162-6
]
[
2009
40
1
1
79-85
]
[
1991
19
4
4
215-20
]
[
1990
19
4
4
208
]
[
2015
67
^s1
^s1
1
67-73
]
[
2014
25
5
5
672-4
]