1812-9528
1812-9528
S1812-95282019000200102
10.18004/mem.iics/1812-9528/2019.017.02.102-106
Peru
Paraguay
Brazil
Belgium
00
08
2019
00
08
2019
17
2
102
106
[
1991
45
4
4
553-9
]
[
1999
54
169-78
]
[
2006
61
3
3
259-81
]
[
2003
78
3-4
3-4
135-63
]
[
1996
55
5
5
1003-11
]
[
2010
30
4
4
305-10
]
[
1981
61
1
1
201-6
]
[
1992
21
4
4
314-23
]
[
2003
60
4
4
735-42
]
[
1993
40
4
4
789-99
]
[
2011
76
6
6
1051-7
]
[
2012
132
3-4
3-4
159-68
]