This author has not been identified. Look up 'Piotr Zuraniewski' in GoogleThis author has not been identified. Look up 'Przemyslaw Pawelczak' in GoogleThis author has not been identified. Look up 'Sahar Hoteit' in GoogleThis author has not been identified. Look up 'Stefano Secci' in GoogleThis author has not been identified. Look up 'Robert Wójcik' in Google