Koval, Y. V., L. I. Yukhymenko, and S. M. Khomenko. “Нeart Rate Variability of Children Aged 8-11 With Deprivation of Auditory Function”. Cherkasy University Bulletin: Biological Sciences Series, no. 1, Aug. 2021, pp. 54-59, https://bio-ejournal.cdu.edu.ua/article/view/4250.