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First Author:
 
Daniel Ventosa-santaulària
CIDE
daniel@ventosa-santaularia.com
 
, Mexico
 
 
 
http://www.ventosa-santaularia.com

Second Author:

Manuel Gómez-zaldívar
Universidad de Guanajuato
manuel.gomez@ugto.org
 
 
 
 

Third Author:

Lizet A Pérez
CIDE
lizet.perez@alumnos.cide.edu
 
 
 
 
http://