0121-7488 0121-7488 S0121-74882019000100067 10.19053/01217488.v10.n1.2019.7261 Colombia Colombia 00 06 2019 00 06 2019 10 1 67 77

[1] 2010 59 2 2 359-76 [2] 1995 82 1 1 127-38 [3] 2006 [4] 1975 72 1 1 20-2 [5] 2009 51 2 2 146-61 [6] 1983 [7] 2014 16 1 1 [8] 2006 [9] 1998 [10] 2003 12 33-349 [11] 2013 52 [12] 2009 44 2 2 182-98 [13] 1990 42 3 3 543-59