Suvorov, Nikolay. «Psychophysiological Training of Operators in Adaptive Biofeedback Cardiorhythm Control». The Spanish Journal of Psychology 9, no. 2 (noviembre 24, 2006): 193–200. Accedido julio 20, 2026. https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0606220193A.