Bourouhou, A., A. Jilbab, C. Nacir, and A. Hammouch. “Heart Sounds Classification for a Medical Diagnostic Assistance”. International Journal of Online and Biomedical Engineering (iJOE), vol. 15, no. 11, July 2019, pp. pp. 88-103, doi:10.3991/ijoe.v15i11.10804.