DHANDE, BS.; PACHARANEY, US. Railway Management System using IR sensors and Internet of Things Technology. International Journal of Scientific Research in Network Security and Communication, [S. l.], v. 5, n. 1, p. 12–15, 2017. Disponível em: https://ijsrnsc.org/index.php/j/article/view/53. Acesso em: 23 feb. 2025.