“Application of PNN for the Detection of QRS-complexes in Electrocardiogram using Combined Entropy”, Int. J. Curr. Eng. Technol., vol. 3, no. 3, pp. 856–862, Aug. 2013, Accessed: Apr. 04, 2026. [Online]. Available: https://ijcet.evegenis.org/index.php/ijcet/article/view/1313