2007-2538 2007-2538 S2007-25382018000100347 10.15174/rv.v0i21.337 Colombia 00 06 2018 00 06 2018 11 21 347 378

1987 2007 1970 1993 1993 7 7 5-18 1994 1997 2001 2004 1990 2006 1988 1994 2002 1941 1988 IV 1985 1961 1998 1999