Impact of Bi2O3 modifier concentration on barium–zincborate glasses: physical, structural, elastic, and radiation-shielding propertiesK. A. Naseer, K. Marimuthu, K. A. Mahmoud and M. I. SayyedEur. Phys. J. Plus, 136 1 (2021) 116DOI: https://doi.org/10.1140/epjp/s13360-020-01056-6