1909-3667 1909-3667 S1909-36672019000200043 10.18180/tecciencia.2019.27.5 Colombia 00 12 2019 00 12 2019 14 27 43 52

[1] 2013 vol. 28 no. 8 English Edition no. 8 488-96 [2] 2010 vol. 51 no. 8 no. 8 471-80 [3] 2013 no. 27 108-16 [4] 2013 [5] 2005 vol. 9 no. 9 no. 9 445-53 [6] 2002 [7] 2010 vol. 35 no. 1 no. 1 86-104 [8] 2007 [9] 1998 vol. 395 no. 6699 no. 6699 272-4 [10] 2007 [11] 2006 [12] 2005 [13] 2002 vol. 35 no. 8 no. 8 777-83 [14] 2017 [15] 2017 vol. 317 157-62 [16] 2015 vol. 1 no. 1 no. 1 94-100 [17] 2011 vol. 26 no. 7 no. 7 425-33 [18] 2016 vol. 39 no. 2 no. 2 78-81 [19] 2016 vol. 64 296-319 [20] 2003 vol. 31 no. 5 no. 5 252-5 [21] 2016 vol. 93 380-5 [22] 2014 vol. 9 no. 17 no. 17 9-14 [23] 2014 vol. 9 no. 16 no. 16 43-9