1887-8571
1887-8571
S1887-85712020000400235
10.4321/s1887-85712020000400005
00
12
2020
00
12
2020
76
4
235
238
[
2004
]
[
2003
34
5
5
331-42
]
[
2004
27
1
1
25-61
]
[
1927
69
272-5
]
[
2000
]
[
2005
1
6
6
123-35
]
[
2011
8
2
2
120-5
]
[
1973
]
[
2000
2
]
[
1998
5
]
[
1988
19
809-11
]
[
2010
4
57-9
]