Saxena, Chhavi, PD Murarka, and Hemant Kumar Gupta. “Noise Reduction in ECG Signals Using Notch Filter”. International Journal of Computer Sciences and Engineering 5, no. 8 (November 11, 2025): 147–150. Accessed February 2, 2026. https://ijcse.isroset.org/index.php/j/article/view/1587.