BILSKI, Rafał. The power ratio of bands of low and high frequency in normalized units in the FFT method as a marker for quantitative assessment of the effectiveness of HRV biofeedback session. Medical and Biological Sciences, [S. l.], v. 28, n. 4, p. 5–10, 2014. DOI: 10.12775/MBS.2014.027. Disponível em: https://apcz.umk.pl/MBS/article/view/MBS.2014.027. Acesso em: 28 jun. 2025.