1405-9436 1405-9436 S1405-94362006000200343 00 00 2006 00 00 2006 3 24 343 379

2002 2001 2005 1998 1990 1993 1987 1993 2000 2002 1994 1999 2000 1992 2002 1998 2001 1995 1989