Walter, M. [P:(DE-HGF)0] ; Akola, J. [P:(DE-Juel1)VDB6340] ; Lopez-Acevedo, O. [P:(DE-HGF)0] ; Jadzinsky, P.D. [P:(DE-HGF)0] ; Calero, G. [P:(DE-HGF)0] ; Ackerson, C.J. [P:(DE-HGF)0] ; Whetten, R.L. [P:(DE-HGF)0] ; Grönbeck, H. [P:(DE-HGF)0] ; Häkkinen, H. [P:(DE-HGF)0]