1409-4703
1409-4703
S1409-47032018000200412
10.15517/aie.v18i2.33068
Puerto Rico
00
08
2018
00
08
2018
18
2
412
433
[
2002
4
2-3
2-3
108-29
]
[
2009
2nd
]
[
1998
7
1
1
45-54
]
[
2008
]
[
1990
31-58
]
[
2015
]
[
1962
]
[
1986
]
[
1987
]
[
1996
]
[
2007
32
2
2
111-9
]
[
CIBER
2008
]
[
CNN
2016
]
[
2014
17-23
]
[
1996
]
[
2007
]
[
1991
]
[
2001
]
[
1876
]
[
2013
]
[
2005
53
4
4
25-39
]
[
2004
]
[
2011
]
[
1999
]
[
2000
]
[
2015
136
6
6
]
[
1984
]
[
1977
]
[
1976
]
[
2013
18
52
52
25-47
]
[
1990
]
[
2014
]
[
2001
9
5
5
1-6
]
[
2015
135
1
1
]
[
2002
17
1
1
24-40
]
[
2012
46
1
1
9-18
]
[
2013
1
2
2
105-29
]
[
2015
26
1
1
10-24
]
[
2003
]
[
2004
12
4
4
58-80
]
[
1997
]
[
2005
]
[
2007
]
[
2011
]
[
2015
]
[
2008
]
[
2013
]
[
2014
2
12
12
1128-42
]
[
1991
]
[
1991
I
257-407
]
[
1999
6
3-68
]
[
1995
]
[
1993
II
9-348
]
[
1994
99-174
]
[
1998
]
[
2016
]