1688-7468 1688-7468 S1688-74682018000200108 10.22235/pe.v11i2.1630 Chile Chile 00 12 2018 00 12 2018 11 2 108 129

2013 11 2 2 587-602 2007 59-78 2015 245-81 2015 1992 2014 12 2 2 597-615 2015 175-204 2015 2005 Trinidad y Tobago 2014 52 1 1 61-91 2006 2015 41 127-41 2014 2015 145-73 1998 2010 8 2 2 809-19 2011 10 19 19 107-29 2011 37 1 1 35-52 2015 42 93-122 2007 40 1 1 31-43 2010 36 2 2 213-39 2015 67 37-52 2013 2010 38 1 1 3-14 2009 2011 9 1 1 227-53 2015 13 2 2 781-94