Nykyforova, O. A., and Yu. V. Soloviova. “To Provide Rail Operators With Normal Duties We Should Take Account Physioligical and Hygienic Efforts”. Science and Transport Progress , no. 37 (June 25, 2011): 51–54. Accessed November 23, 2024. https://stp.ust.edu.ua/article/view/9441.