Sifuentes, E., J. Cota-Ruiz, and R. Gonzalez-Landaeta. “Respiratory Rate Detection by a Time-Based Measurement System”. Revista Mexicana de Ingenieria Biomedica 37, no. 2 (May 15, 2016): 91–99. Accessed May 6, 2024. https://rmib.mx/index.php/rmib/article/view/84.