0122-9354 0122-9354 S0122-93542020000200007 10.19052/mv.vol1.iss41.1 Colombia 00 12 2020 00 12 2020 41 7 11 1 2004 6 11 11 135-56 2 2011 3 2009 4 2017 5 1920 6 1930 7 1993 8 1938 8 70 70 20-30 9 1944 13 85 85 42-6 10 1943 12 8 8 1-5 11 2018 77 77 211-35