Ievlanov, M., Serdiuk, N., Feshchenko, A., Duiunova, T., Kiriienko, M., Cherepnov, I., Pivnenko, L., & Dyakonov, V. (2020). Improving the mathematical model of change in the body state of an employee. Eastern-European Journal of Enterprise Technologies, 1(10 (103), 32–42. https://doi.org/10.15587/1729-4061.2020.195755