1405-9193 1405-9193 S1405-91932020000200351 10.22201/iij.24484881e.2020.43.15188 Mexico 00 12 2020 00 12 2020 43 351 376

2019 2009 4a 1820 2008 1787 2019 1997 1965 2018 2003 1984 2018 2012 1993 1994 1998 2012 2016 12 2 2 2019 2017 1966 60 2 2