1990-8644 1990-8644 S1990-86442018000400164 Colombia 00 09 2018 00 09 2018 14 64 164 168

1993 2010 1999 2012 2011 2015 2017 2009 2016 2004 2005 2013 2007 2015 58 197-220 2006 2005 2016 12 2 2 2015 14 2010 44 2 2 165-84 2016 19 2 2 45-76 1974 7 221-8