This author has not been identified. Look up 'Jan Rühaak' in GoogleThis author has not been identified. Look up 'Lars König' in GoogleThis author has not been identified. Look up 'Marc Hallmann' in GoogleThis author has not been identified. Look up 'Nils Papenberg' in GoogleThis author has not been identified. Look up 'Stefan Heldmann' in GoogleThis author has not been identified. Look up 'Hanno Schumacher' in GoogleThis author has not been identified. Look up 'Bernd Fischer 0001' in Google