Yukta P Gosavi, Aditi J Khalkar, Dipali A Jagatap, Kalyani Y Mahajan, Nitin D. Sonawane. Real-Time Railway Track Crack and Obstacle Detection System using Arduino and IoT Alert. Int J Sci Res Sci Eng Technol. 2025;12(2):447-451. Accessed August 15, 2025. https://www.ijsrset.technoscienceacademy.com/index.php/home/article/view/IJSRSET25122153