Sousa, K., A. Segadáes, M. Morelli, and R. Kiminami. “EM haracterization of nO 2O3- b2O3 oO eramics btained by ombustion rocess”. cta icroscopica, ol. 11, no. 1, Aug. 2002, pp. 81-84, https://acta-microscopica.org/acta/article/view/246.