Effect of Pr6O11 doping in electrical and microstructural properties of SnO2-based varistors. Acta Scientiarum. Technology, [S. l.], v. 36, n. 2, p. 237–244, 2014. DOI: 10.4025/actascitechnol.v36i2.17995. Disponível em: https://periodicos.uem.br/actascitechnol/index.php/ActaSciTechnol/article/view/17995. Acesso em: 4 jun. 2026.