1405-3195 1405-3195 S1405-31952007000100111 Mexico Mexico Mexico 00 02 2007 00 02 2007 41 1 111 120

2001 35 2 2 183-7 2003 17 598-606 2003 35 530-41 1990 22 1 1 270-4 2001 15 91-7 1995 11 205-21 2002 17-79 2002 3-10 2000 288 1356-8 1998 2 330-2 1995 243-70 1998 113 53-66 JMP 2002 315-34 2004 1993 148 1-60 1995 450 2002 : 525-42 2000 54 4 4 449-58 2002 145-50 2004 210 1963 28 29-176 2003 57 4 4 481-90 2003 9 2 2 271-7 1978 432 2000 94 2 2 113-42 2002 13 595-602