0034-7744
0034-7744
S0034-77442016000401431
10.15517/rbt.v64i4.22968
VE
VE
00
12
2016
00
12
2016
64
4
1431
1439
[
2008
15
165-72
]
[
2007
18
1131-6
]
[
1986
25
1217-9
]
[
1995
28
25-30
]
[
1999
62
67-9
]
[
2009
57
5762-70
]
[
2011
30
1
1
66-73
]
[
2015
8
66-71.
]
[
2012
50
1448-62
]
[
2003
51
6509-15
]
[
2015
7
179-95
]
[
2010
119
4
4
1566-70
]
[
1997
8
505-8
]
[
2012
2
27-31
]
[
R Core Team
2015
]
[
2013
6
96-9
]
[
2015
53
11
11
1691-8
]
[
2014
1
1-6
]
[
2014
7
1034-8
]
[
2010
2
1569-73
]
[
2005
89
191-8
]
[
2007
98
3076-9
]
[
2011
1
98-106.
]
[
2002
]
[
2012
11
1
1
12-34
]