This author has not been identified. Look up 'Álvaro Herrero' in GoogleThis author has not been identified. Look up 'Bruno Baruque' in GoogleThis author has not been identified. Look up 'Javier Sedano' in GoogleThis author has not been identified. Look up 'Héctor Quintián-Pardo' in GoogleThis author has not been identified. Look up 'Emilio Corchado' in Google