V.Prakash, N.Ragupathi, S.Deepanvel and A.Amarnath Prabhakaran (2019) “Automatic railway gate with safety alarm ”, International journal of intellectual advancements and research in engineering computations, 7(1), pp. 1046–1051. Available at: https://ijiarec.com/ijiarec/article/view/915 (Accessed: 2May2024).