0300-9041 0300-9041 S0300-90412018000800548 10.24245/gom.v86i8.1479 México México México. 00 00 2018 00 00 2018 86 8 548 553

1 2 3 4 5 6 2000 66 360-6 7 8 9 1993 165 376-9 10 11 2007 7 A4-8 12 2013 27 2 2 106-12 13 14 15 16 17 18 19 20