Structural and spectroscopic properties of phosphate-tungsten glasses doped with Nd3+ and Tb3+ - Guidini, Priscila; Galleani, Gustavo; Faria, Walter José Gomes Juste; Silva, Igor Danciães Almeida; Eckert, Hellmut; de Camargo, Andrea Simone Stucchi (Journal of Non-Crystalline Solids, 2020)