Valigun, N., D. Gumenyuk, Yu. Yesypenko, O. Zelenyi, O. Pecherytsia, and I. Shevchenko. “Current Directions of Educational Activity of SSTC NRS”. Nuclear and Radiation Safety, no. 2(86) (June 12, 2020): 4-12. Accessed July 16, 2020. https://nuclear-journal.com/index.php/journal/article/view/272.