Vargas - Luna, J. L., w. Mayr, and J. A. Cortés - Ramírez. 2014. “Amplitude Modulation Approach for Real-Time Algorithms of ECG-Derived Respiration”. Revista Mexicana De Ingenieria Biomedica 35 (1):53-62. https://rmib.mx/index.php/rmib/article/view/214.