2215-3470
2215-3470
S2215-34702018000200096
10.15359/ru.32-2.7
Costa Rica
Costa Rica
Costa Rica
00
12
2018
00
12
2018
32
2
96
110
[
2003
]
[
2009
]
[
]
[
2003
]
[
2014
6
115-33
]
[
2009
37
3
3
313-26
]
[
1997
54
3
3
726-38
]
[
1990
36
2
2
261-3
]
[
1995
]
[
2007
]
[
2005
]
[
1968
86
1-71
]
[
1983
]
[
1975
]
[
1980
17
411-29
]
[
1995
]
[
2002
20
89-103
]
[
1998
1-2
9
9
93-105
]
[
2010
5
494-502
]
[
1984
a
2
3
3
9-10
]
[
1984
b
8
324-5
]
[
1971
152
1-105
]
[
R Core Team
2014
]
[
2002
]
[
1997
a
44
477-87
]
[
1997
b
44
3
3
471-6
]
[
2004
52
1
1
163-70
]
[
2004
52
4
4
959-71
]
[
2009
25
4
4
497-8
]
[
1996
]
[
2009
57
1-2
1-2
125-31
]
[
1995
]
[
1970
10
2-24
]
[
1998
15/16
79-84
]