International Cooperation for Enhancing Nuclear Safety, Security, Safeguards and Non-proliferation Proceedings of the XXI Edoardo Amaldi Conference, Accademia Nazionale dei Lincei, Rome, Italy, October 7–8, 2019 - Maiani, Luciano 1941-; Jeanloz, Raymond; Lowenthal, Micah; Plastino, Wolfango (Springer International Publishing, 2020)