0120-5587 0120-5587 S0120-55872016000200121 10.17533/udea.lyl.n70a05 Colombia 00 07 2016 00 07 2016 70 121 133

1980 83-100 2013 I 207-345 2009 1976 1997 2008 2009 a 47-55 2009 b 92-100 2007 1995 1988 1979 2009 2 39-51 1981