Vovkanych L, Boretsky Y, Sokolovsky V, Berhtraum D, Kras S. Validation of the Software-Hardware Complex “Rytm” for Measurement of the RR Intervals and Heart Rate Variability Analysis During Exercise and Recovery Period. Teor. metod. fiz. vihov. [Internet]. 2021 Mar. 25 [cited 2026 Aug. 25];21(1):61-8. Available from: https://www.tmfv.com.ua/journal/article/view/1461