Ibarra Hernández, Roilhi Frajo, Miguel Ángel Alonso-Arévalo, and Eloísa del Carmen García-Canseco. 2023. “Comparison of Spectral and Sparse Feature Extraction Methods for Heart Sounds Classification”. Revista Mexicana De Ingenieria Biomedica 44 (4):6-22. https://doi.org/10.17488/RMIB.44.4.1.