Nuclear security risks in Ukraine - V. I. Havryliuk; S. S. Drapei; B. V. Kaidyk; V. I. Kyryshchuk; V. V. Parkhomenko; O. P. Romanova; A. V. Samsonenko; Ye. I. Katunin; A. V. Boiko (Nuclear physics and atomic energy, 2021)