1659-4266
1659-4266
S1659-42662016000200207
10.22458/urj.v8i2.1563
Costa Rica
00
12
2016
00
12
2016
8
2
207
216
[
1994
]
[
1981
37
4
4
123-37
]
[
2009
38
5
5
619-48
]
[
2013
368
1631
1631
1-15
]
[
2007
]
[
2000
48
158-63
]
[
2007
19
1
1
139-68
]
[
2009
16
1
1
43-61
]
[
1979
]
[
1987
48
467-75
]
[
2011
]
[
2012
00
0
0
1-21
]
[
2009
1
1
1
27-31
]
[
2012
4
1
1
93-9
]
[
2013
5
2
2
325-31
]
[
1998
22
605-21
]
[
1991
]
[
1995
22
2
2
422-40
]
[
2009
]
[
2010
61
4
4
716-36
]
[
2012
15
7
7
850-70
]
[
2013
a
14
2
2
153-69
]
[
2013
b
10
3
3
392-411
]
[
2008
31
2
2
169-87
]
[
2009
1
1
1
13-25
]
[
1996
17
7
7
507-18
]
[
2006
83
1
1
42-59
]
[
2008
187
18-24
]
[
2011
96
3
3
915-36
]
[
1998
]
[
2014
67
3
3
287-310
]
[
2012
104
1
1
3-13
]
[
2009
a
49
1
1
88-105
]
[
2009
b
35
213-34
]
[
2010
7
1
1
15-29
]
[
2013
16
3
3
445-66
]
[
2012
]