DONZA, A.; JONES, R.; TEIXEIRA, R.; DA SILVA, B. A Simple Electronic Circuit for an Automatic Train Safety Stop System. Engineering, Technology & Applied Science Research, Greece, v. 8, n. 4, p. 3255–3259, 2018. DOI: 10.48084/etasr.2215. Disponível em: https://etasr.com/index.php/ETASR/article/view/2215. Acesso em: 8 dec. 2024.