This author has not been identified. Look up 'Alberto Sillitti' in GoogleThis author has not been identified. Look up 'Tullio Vernazza' in GoogleThis author has not been identified. Look up 'Giampiero Granatella' in GoogleThis author has not been identified. Look up 'Paolo Predonzani' in GoogleThis author has not been identified. Look up 'Giancarlo Succi' in Google