1816-8949
1816-8949
S1816-89492019000100025
10.18004/anales/2019.052(01)25-032
Paraguay
Venezuela
Venezuela
Paraguay
Paraguay
00
04
2019
00
04
2019
52
1
25
32
[
2004
24
1049-59
]
[
1998
18
139-45
]
[
1995
5
95-7
]
[
2000
15
213-8
]
[
2000
15
219-25
]
[
1997
10
247-53
]
[
2006
194
1088-99
]
[
2008
31
164-70
]
[
2010
203
e1-8
]
[
2003
188
228-33
]
[
1998
11
167-72
]
[
1996
7
189-92
]
[
1998
11
167-72
]
[
1998
17
687-92
]
[
1999
180
441-6
]
[
2003
188
228-33
]
[
1994
11
382-5
]
[
1998
25
191-5
]
[
2000
60
97-101
]
[
1991
30
487-90
]
[
1985
19-46
]
[
2013
30
10
10
805-12
]
[
2011
37
6
6
668-72
]
[
2014
36
3
3
208-14
]