1405-7743 1405-7743 S1405-77432018000400004 10.22201/fi.25940732e.2018.19n4.034 México México México 00 12 2018 00 12 2018 19 4

2005 2006 43 98-105 2006 5 1998 1 214-22 2009 46 607-15 2008 250-83 1998 1 111-8 1997 34 61-5