0535-5133
0535-5133
S0535-51332020000400316
10.22209/ic.v61n4a02
Venezuela
Venezuela
00
12
2020
00
12
2020
61
4
316
323
[
1988
54
1063-70
]
[
2020
20
56
]
[
2018
267
148-53
]
[
2017
215
9-14
]
[
2013
3
1357-73
]
[
2006
32
259-73
]
[
2015
124
507-18
]
[
2014
158
261-3
]
[
2016
7
37
]
[
2014
9
]
[
2018
20
762-71
]
[
2010
38
384-93
]
[
2015
9
169
]
[
2020
10
967
]
[
2015
1
15026
]
[
2008
34
819-34
]
[
2018
6
63-75
]
[
2014
123
796-801
]
[
2005
]
[
1990
]
[
1962
10
799-812
]
[
2016
42
^s1
^s1
1
S90-4
]