Lozada Tobar, K. D., J. A. Mocha Bonilla, and W. Castro Acosta. “Heart Rate Analysis: A Study With College Students Who Practice Regular Physical Activity”. Ciencia Digital, Vol. 4, no. 1.1., Feb. 2020, pp. 21-31, doi:10.33262/cienciadigital.v4i1.1..1161.