G. De La Fuente Cortes, J. A. Diaz-Mendez, G. Espinosa Flores-Verdad, and V. R. Gonzalez-Diaz, “Ischemic and non-ischemic heartbeat classifier for portable automatic detection systems”, IEEE LAT AM T, vol. 19, no. 6, pp. 952–960, Jun. 2021.