V.PRAKASH; N.RAGUPATHI; S.DEEPANVEL; A.AMARNATH PRABHAKARAN. Automatic railway gate with safety alarm . International journal of intellectual advancements and research in engineering computations, [S. l.], v. 7, n. 1, p. 1046–1051, 2019. Disponível em: https://ijiarec.com/ijiarec/article/view/915. Acesso em: 2 may. 2024.