Proyectiles de guerra (IMAGE) University of Barcelona Caption El catedrático emérito Albert Casas, experto en prospección geológica y geofísica e investigación minera. Credit UNIVERSIDAD DE BARCELONA Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.