MIRESCU, Ștefan-C., CIOCOIU, A. L., DAVID, L., & TARBA, C. (2017). Heart rate variability: a practical review for the beginner. Studia Universitatis Babeș-Bolyai Biologia, 62(1), 87–100. https://doi.org/10.24193/subbb.2017.1.06