2448-6442
2448-6442
S2448-64422018000100003
10.24201/es.2018v36n106.1642
USA
00
04
2018
00
04
2018
36
106
3
23
[
1995
]
[
1965
]
[
1935
]
[
1938
]
[
1938
]
[
1951
]
[
1953
]
[
1991
]
[
1968
35
4
4
681-706
]
[
1971
12
3
3
295-334
]
[
1972
]
[
1977
]
[
1980
]
[
1990
]
[
1984
]
[
1986
]
[
1992
]
[
1997
]
[
1998
]
[
2000
]
[
2011
111-24
]
[
2001
]
[
2002
]
[
2008
]
[
2013
]
[
2016
2
]
[
1968
]
[
1966
]
[
1982
44
2
2
]
[
1992
]
[
1997
]
[
1902
]
[
1944
]
[
1994
]
[
2015
33
4
4
327-46
]
[
2016
19
3
3
303-21
]
[
2007
]
[
1975
1
13-36
]
[
1901
6
1-72
]
[
2012
]
[
2011
]
[
2014
]
[
2009
]
[
2016
]
[
2012
]
[
2014
38
4
4
1344-62
]
[
2016
19
1
1
57-73
]
[
2018
]
[
1999
]
[
2006
]
[
1991
]
[
2010
]
[
2008
]
[
2005
]
[
1999
]
[
2016
64
1
1
73-92
]
[
2016
53
6
6
114-36
]
[
2017
47
2
2
164-94
]
[
1999
683-5
]
[
2002
107
6
6
1468-532
]
[
2013
13
2
2
274-91
]
[
2014
37
10
10
1687-711
]
[
2016
64
1
1
64-72
]
[
2017
43
129
129
279-304
]
[
2017
17
1
1
55-69
]
[
2018
]
[
1958
nueva
]
[
2010
]
[
2010
58
3
3
486-96
]