1657-6276 1657-6276 S1657-62762018000200211 10.14482/pege.45.10103 00 12 2018 00 12 2018 45 211 238

2000 1985 1976 1978 1998 2017 1991 17 99-120 2012 1974 2008 2011 1993 1975 2013 2003 24 5 5 453-70 1961 1985 2010 Medellín 1962 2007 50 1 1 57-76 2016 2017 1995 1990 2010 2011 1985 1989 1983 48 2 2 147-60 1964 1996 1972 1985 1989 2008 16 19 19 23-32 1980 1984 Freeman, R. y Mc Vea 2001 1965 43 59 59 115-22 2002 1996 2009 30 435-45 2015 1999 1985 1992 2000 2000 1990 68 3 3 1994 1977 82 5 5 929-64 2002 2016 2003 53-61 2017 1990 2012 2001 2000 2004 2009 2011 1973 1979 1965 2007 32 3 3 817-35 1978 1991 2 71-8 1980 1943 50 4 4 370-96 1933 2003 1991 2009 2011 1976 1984 1982 2002 16 2 2 23-46 2008 29 319-36 1999 12 6 6 557-71 1995 1994 1983 2002 1959 1982 1978 1980 1985 2008 2017 I 2010 1992 2011 2014 1972 1923 1979 1991 1980 2016 1997 18 7 7 509-33 2009 1985 1997 30 2 2 169-83 1984 5 2 2 171-80 2017 1984 2008 2018