Detection of R- Peaks in Electrocardiogram based onWavelet Transform and Wavelet Approximation. Punjab University Journal of Mathematics, [S. l.], v. 54, n. 7, p. 441–453, 2025. Disponível em: https://pujm.pu.edu.pk/index.php/pujm/article/view/229. Acesso em: 29 jun. 2025.