0185-3325 0185-3325 S0185-33252007000600020 Mexico 00 12 2007 00 12 2007 30 6 20 24

1 1991 2 3 1941 4 2000 287 253-61 5 1984 6 1985 7 1994 Second 8 1973 9 1994 295-338 10 1983 16 109-10