Problem of power spectra estimation in application to the analysis of heart rate variabilityYurii M. Ishbulatov, Vladimir I. Gridnev, Vladimir I. Ponomarenko, Dmitry M. Ezhov, Mikhail D. Prokhorov, Anton R. Kiselev and Anatoly S. KaravaevEur. Phys. J. Spec. Top., 232 5 (2023) 615-624DOI: https://doi.org/10.1140/epjs/s11734-022-00731-2