This author has not been identified. Look up 'S. Magnus Ågren' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Eric Knauss' in GoogleThis author has not been identified. Look up 'Rogardt Heldal' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Patrizio Pelliccione' in GoogleThis author has not been identified. Look up 'Gosta Malmqvist' in GoogleThis author has not been identified. Look up 'Jonas Bodén' in Google