0185-1667 0185-1667 S0185-16672003000200071 Spain 00 09 2003 00 09 2003 62 245 71 106

1993 1981 1988 16 161-4 1990 379-96 1988 1993 21 39-42 1996 1995 1993 209-45 1947 361-73 1981 1981 1974 1960 1984