DAS, N.; DAS, C.; MOZUMDER, R.; BHOWMIK, J. C. Satellite Based Train Monitoring System. Journal of Electrical Engineering, [S. l.], v. 36, n. 2, p. 35–38, 2011. Disponível em: https://banglajol.info/index.php/JEE/article/view/8095. Acesso em: 27 jul. 2024.