1409-4258
1409-4258
S1409-42582017000200028
10.15359/ree.21-2.2
CU
CU
CU
00
08
2017
00
08
2017
21
2
28
50
[
2010
1-15
]
[
2014
58
58
19-31
]
[
]
[
2003
60-82
]
[
2000
12
12
70-5
]
[
2010
2
3
3
42-9
]
[
2011
6
6
]
[
2004
México
]
[
2015
5
5
103-11
]
[
2008
6
2
2
1-20
]
[
2006
11
2
2
]
[
2005
]
[
2004
]
[
2013
11
4
4
]
[
2012
1
1
1
]
[
2011
8
16
16
]
[
2006
8
8
175-87
]
[
2011
2
2
2
1-10
]
[
2003
]
[
2011
]
[
2010
]
[
2006
5-20
]
[
2006
]
[
2013
]
[
2002
]
[
2015
7
2
2
160-7
]
[
2004
]
[
2014
6
2
2
214-30
]
[
2007
17-56
]
[
2015
7
10
10
86-107
]
[
2010
]
[
2012
]
[
2005
]
[
2012
]
[
2012
20
20
1-32
]