1405-9436 1405-9436 S1405-94362005000200035 Mexico 00 00 2005 00 00 2005 3 22 35 67

1996 1979 1973 1987 1980 2005 1994 1981 1970 1978 4 3 3 35-57 1980 1 144-74 2005 21 21 1986 1 1983 1992 44 217-45 1983 9 1 1 79-102 1978 1981 6 3 3 500-14 1989 1981 7 1 1 41-55 1996 2004 1982 2004 15 30 30 1991 1976 1978 1991 2002 1991 2005 1971 1978 4 2 2 171-91 1977 1963 1984 1982 1986 1995 12 6 6 1977 1981 1964 1980 1999 40 40 2000 2001 2004 1980 1981 158-63 1981 7 1 1 13-36 1982 2001 1997 1978 2004 2004 39-54 1971 1970 2004 1979 1974 1996 3 3 2004 15 30 30 2002 2002 1976 1980 6 3 3 343-67 1989 1960 2005 21 21 1991 1978 34 2 2 29-45 1974