0034-7744

0034-7744

S0034-77442019000200078

10.15517/rbt.v67i2supl.37207

Costa Rica

00 04 2019

00 04 2019

67 2 78 82

1999 41

95-8

1983

118-57

2011 17

829-34

2004 42

90-8

2016 9

62

2015 6

478-82

2004

1-12

2002 21

67-76

2009

483-532

1989 20

397-430

2008 103

871-5

2013 4

657-702

R Development Core Team. 2014

1997 47

252-61

2013 31

283-8

2013 13

615-8

2015 65

125-40

2016 7 6 6

1128-34

2006 30

101-6