0034-7744
0034-7744
S0034-77442018000301065
10.15517/rbt.v66i3.31846
Mexico
Canada
00
09
2018
00
09
2018
66
3
1065
1077
[
1977
4
1-26
]
[
2008
366
16-27
]
[
2008
]
[
2002
25
441-50
]
[
2008
73
1314-36
]
[
2003
256
217-28
]
[
2005
66
45-72
]
[
2001
51
633-41
]
[
2007
8
5
5
1-13
]
[
1989
15
3
3
71-80
]
[
2006
]
[
2007
75
468-80
]
[
2013
327-55
]
[
2006
312
291-5
]
[
2004
52
1
1
187-99
]
[
2017
]
[
1974
]
[
2011
112
115-25
]
[
2018
]
[
2014
61
1
1
129-44
]
[
2016
51
1
1
123-36
]
[
2001
58
1383-403
]
[
2001
129
2
2
271-80
]
[
2012
]
[
1997
60
3
3
984-1004
]
[
1998
46
175-84
]
[
2009
6
330-9
]
[
2009
357-99
]
[
2016
5th
]
[
R Core Team
2017
]
[
2005
304
1-13
]
[
2014
35
4
4
456-70
]
[
2013
77
1
1
37-45
]
[
2011
39
2
2
250-60
]
[
2013
]
[
2003
296
1
1
93-112
]
[
2009
385
245-60
]
[
2002
]
[
2014
23
877-89
]
[
2006
69
246-54
]
[
2009
]