Pavlyuchenko, A.V., P.P. Loshitsky, and I.V. Ponomarev. “Radiometric Identification of Granular Materials”. Ukrainian Journal of Physics 66, no. 6 (July 6, 2021): 528. Accessed April 20, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019677.