This author has not been identified. Look up 'Petra Ritter' in GoogleThis author has not been identified. Look up 'Jan Born' in GoogleThis author has not been identified. Look up 'Michael Brecht' in GoogleThis author has not been identified. Look up 'Hubert R. Dinse' in GoogleThis author has not been identified. Look up 'Uwe Heinemann' in GoogleThis author has not been identified. Look up 'Burkhard Pleger' in GoogleThis author has not been identified. Look up 'Dietmar Schmitz' in GoogleThis author has not been identified. Look up 'Susanne Schreiber' in GoogleThis author has not been identified. Look up 'Arno Villringer' in GoogleThis author has not been identified. Look up 'Richard Kempter' in Google