0121-246X
0121-246X
S0121-246X2019000200122
10.17533/udea.rfo.v31n1-2a11
Colombia
Colombia
Colombia
Colombia
Colombia
Colombia
Colombia
00
12
2019
00
12
2019
31
1
122
135
[
1997
111
4
4
401-9
]
[
1973
3
]
[
1975
2
]
[
1998
114
3
3
299-306
]
[
1980
50
3
3
169-78
]
[
1968
54
6
6
441-61
]
[
2003
21
1
1
36-8
]
[
2006
7
21
21
326-34
]
[
1970
57
1
1
35-46
]
[
2018
154
2
2
249-59
]
[
2000
118
6
6
617-23
]
[
1988
93
5
5
380-7
]
[
1976
84
1
1
11-5
]
[
1976
70
2
2
146-53
]
[
1975
68
5
5
554-63
]
[
1983
]
[
1963
21
533-51
]
[
1964
22
121-35
]
[
2005
84
1
1
9-20
]
[
]
[
2006
7
4
4
100
]
[
2006
33
3
3
205-12
]
[
1981
80
1
1
83-91
]
[
1974
65
6
6
626-37
]
[
1979
75
1
1
46-53
]
[
2017
3
1
1
1-8
]
[
1969
55
6
6
776-90
]
[
1986
]
[
2014
146
5
5
565-72
]
[
2010
80
2
2
385-90
]
[
1990
97
5
5
405-12
]
[
2014
13
3
3
286-94
]
[
2011
81
6
6
1021-7
]
[
2017
22
6
6
99-109
]
[
2017
8
^s1
^s1
1
S1-6
]
[
2017
37
2
2
211-7
]