0185-3929 0185-3929 S0185-39292008000100143 Mexico 00 00 2008 00 00 2008 29 113 143 161

2000 2000 53-4 2002 2002 2002 103-39 2000 1999 623-58 1996 14 345-60 1999 2006 1986 2004 1995 2002 35-62 2007 92 92 85-101 1999 12 12 1994 95-111 1989 2004 2004 2004 1994 99 99 1997 IX 9 9 1997 1992 2006 1997 1996 36 36 121-50 2003 1993 5 5 2002