Oxysulfate/oxysulfide of 'TB POT. 3+' obtained by thermal decomposition of terbium sulfate hydrates under different atmospheres - Rodrigues, Rodrigo Vieira; Machado, L. C; Matos, Jivaldo do Rosário; Muri, Emanuel José Bassani; Marins, Antonio Augusto Lopes; Brito, Hermi Felinto de; Passos, Carlos Augusto Cardoso (Journal of Thermal Analysis and Calorimetry, 2015)