0034-7744

0034-7744

S0034-77442018000100394

10.15517/rbt.v66i1.29013

Mexico

USA

Costa Rica

00 03 2018

00 03 2018

66 1 394 402

2010 143 8 8

1831-41

2003 110 2 2

211-9

2003

1973 68 341 341

66-74

2007

2005 8

148-59

2013

2013 175

1-7

2009

1987 I

1997 II

2013

2011 20 11 11

2445-59

1997 67

345-66

2014 68 1 1

10-6

2005

2013 87 6 6

1321-38

2003 17 1 1

168-77

1999 31 3 3

264-323

2014 64 5 5

416-28

2006 113

363-75

2015 1355

52-76

2003 13 5 5

1491-501

2013 9 4 4

298-310

2009 23 4 4

948-56

2006

2000 403

853-8

2016

2003 12 6 6

1239-52

R Development Core Team 2013

1993 7

480-8

2004

198-226

2013 87 5 5

1083-100