0185-1667
0185-1667
S0185-16672018000300040
10.22201/fe.01851667p.2018.305.67620
Mexico
Mexico
00
09
2018
00
09
2018
77
305
40
73
[
2013
1
2
2
100-11
]
[
2017
4
2
2
91-8
]
[
2009
48
4
4
951-9
]
[
2012
3
12
12
323-9
]
[
2012
4
9
9
142-8
]
[
2003
30
5
5
571-84
]
[
2005
19
1
1
31-43
]
[
2008
]
[
1986
52
3
3
630-9
]
[
2012
27
3
3
374-80
]
[
2009
12
14-25
]
[
1990
]
[
1994
61
2
2
311-22
]
[
1974
82
6
6
1095-117
]
[
1978
4
3
3
569-81
]
[
1990
66
1
1
1-13
]
[
1978
4
33
33
627-36
]
[
2002
27
1
1
151-60
]
[
2011
]
[
2012
29
4
4
1450-60
]
[
2012
5
1
1
129-45
]
[
1998
23
2
2
57-69
]
[
2006
73
1
1
190-200
]
[
2002
]
[
1948
38
3
3
245-64
]
[
1978
7-14
]
[
2015
]
[
1998
97
1
1
141-57
]
[
2000
3
2
2
148-61
]
[
2009
5
2
2
257-72
]
[
1992
82
1
1
225-48
]
[
2003
115
1
1
53-74
]
[
2012
2
2
2
95-7
]
[
2008
]
[
1986
52
3
3
617-29
]
[
1981
89
5
5
914-27
]
[
1966
]
[
2002
]
[
2006
26
3
3
553-358
]
[
2012
32
4
4
2808-16
]
[
1998
95
3/4
3/4
307-20
]
[
1961
]
[
1979
7
1
1
3-23
]
[
2008
8
2
2
232-41
]
[
2017
5
1
1
33-40
]
[
1988
54
3
3
763-9
]
[
2016
8
2
2
111-38
]
[
2008
]
[
2004
1
3
3
115-30
]
[
1977
]
[
2009
1
2
2
93-101
]
[
2003
7
1
1
152-64
]
[
2005
12
2
2
53-72
]
[
2003
49
1-2
1-2
117-60
]
[
1976
25
30-61
]
[
2007
69
6
6
709-48
]
[
2011
28
3
3
885-90
]
[
1988
]
[
2016
84
4
4
520-37
]