1870-2171
1870-2171
S1870-21712020000200009
10.29201/pe-ipn.v16i31.263.
Mexico
Mexico
Mexico
00
12
2020
00
12
2020
16
31
9
29
[
2011
38
195-206
]
[
1996
199
23-40
]
[
2010
389
5503-10
]
[
1980
6
255-9
]
[
1987
]
[
1986
31
3
3
307-27
]
[
2013
LXXX
318
318
401-26
]
[
2005
73
58-76
]
[
2009
28
972-86
]
[
2002
20
3
3
377-89
]
[
2016
54
182-9
]
[
2018
]
[
2015
62
431-53
]
[
1992
]
[
1986
54
1099-128
]
[
1989
27
105-16
]
[
2004
36
911-28
]
[
1982
50
4
4
987-1007
]
[
1995
11
122-50
]
[
1993
32
485-512
]
[
2002
75
293-301
]
[
2006
68
319-43
]
[
2007
26
229-50
]
[
1977
85
451-72
]
[
1978
]
[
1998
17
671-89
]
[
2000
15
45-58
]
[
2004
19
5
5
551-65
]
[
2006
80
478-500
]
[
2012
111
111
]
[
2013
37
98-112
]
[
2010
21
2
2
105-12
]
[
2003
85
4
4
]
[
2004
59
2
2
755-93
]
[
1971
485-98
]
[
2018
25
14
14
1029-33
]
[
2005
87
362-70
]
[
2012
59
3
3
283-97
]
[
2007
73
858-70
]
[
2006
28
609-20
]