Research Outputs

2001 2001 2000 2000 1999 1999 1998 1998 1997 1997 1996 1996 1995 1995 1994 1994 1993 1993 1992 1992 0.0 0.0 0.2 0.2 0.4 0.4 0.6 0.6 0.8 0.8 1.0 1.0