1909-8367 1909-8367 S1909-83672018000100007 10.31908/19098367.3696 Colombia 00 06 2018 00 06 2018 12 23 7 8 [1] 2012 [2] 2014 19 2 2 171-209 [3] 2018 25 1 1 12-8 [4] 2017 [5] 2016 54 8 8 60-9