2448-5705 2448-5705 S2448-57052020000200047 10.22201/ceiich.24485705e.2020.21.75147 Mexico 00 08 2020 00 08 2020 8 21 47 74

1992 1810 2016 2012 1997 2008 1949 1980 1998 1981 1973 1883 1970 1996 1977 2009 1985 48 229-34 2011