0120-3630 0120-3630 S0120-36302018000200049 10.15446/rbct.n44.70973 Colombia 00 12 2018 00 12 2018 44 49 58

[1] 1978 22 1 1 50-62 [2] 2012 32 32 125-42 [3] 1973 82 82 390-6 [4] 1993 [5] 1953 217 1130 1130 295-305 [6] 1963 50 3-4 3-4 353-73 [7] 1990 89 9 9 297-305 [8] ISO IEC IEEE 2017 [9] ISO IEC 2015 [10] 1926 [11] 2011 Manizales 215-20 [12] 2003 15 15 9-22