Berestov RV, Hots NY. FORMATION OF REQUIREMENTS FOR THE METHOD OF EXTENDING THE TERM OF SERVICE OF CLOSED SOURCES OF IONIZING RADIATION. mpky [Internet]. 2021 Dec. 29 [cited 2024 Dec. 22];(2(47):22-33. Available from: https://mpky.nung.edu.ua/index.php/mpky/article/view/564