Lahoti, Saurabh. “An Upgraded Entropy and Fractal Investigation of HRV Signal for Identification of Heart Dynamics-A Multiscale Methodology”. International Journal of Intelligent Systems and Applications in Engineering 11, no. 8s (July 11, 2023): 259–267. Accessed July 22, 2024. https://ijisae.org/index.php/IJISAE/article/view/3048.