0185-1616 0185-1616 S0185-16162009000100009 10.22201/fcpys.24484903e.2009.0.18769 Mexico Mexico 00 04 2009 00 04 2009 16 9 45

1963 2000 2 2 1991 1995 2003 2003 1980 1993 7 1 1 2000 2004 1992 1972 1992 2007 2007 2001 1998 1990 1990 1996 1991 1998 1995 XV 50 50 1983 1985 1995 1993 1996 1982 1989 2002 1997 2000 1996 2006 9 17 17 1968 1982 1991 1997 1990 1993 1988 1995 1991 IX 26 26 2001 1995 2003 2001 2007 1989 1987 1996 1993 1993 36 36 1981 1994 II 2001 1988 1996 2005 1988 1997 LIX 1 1 2000 1975 2003 1999 1993 1960 1993 1989 1998 1989 2003 2001 1992 4 1980 1992 1987 2001 2001 1980 2003 1996 1980