1870-3453 1870-3453 S1870-34532018000200507 10.22201/ib.20078706e.2018.2.2127 México México Mexico 00 00 2018 00 00 2018 89 2 507 515

2010 2012 19 27-34 1999 31 675-85 2013 8 83-96 2012 84 593-601 2016 73 45-52 2009 13 34-45 2005 Libros INE 1985 811-22 1991 273-87 2006 22 641-51 1999 2016 9 246-63 2017 8 199-208 1981 58-67 2012 60 1345-55 2015 4-5 2008 1988 81-100 2011 28 701-8 2002 24 75-85 2000 37-46 R Studio Core Team 2016 2005 Semarnat 2000 Semarnat 2010 1991 477-99 1997 245-60 2010 23 235-9