Matveyeva, Ilona, Yelena Kuyanova, and Mukhambetkali Burkitbayev. “Concentrations of Polonium-210 and Lead-210 in Soil of the Shu River Valley”. Chemical Bulletin of Kazakh National University 65, no. 1 (March 31, 2012): 132-136. Accessed December 22, 2024. https://bulletin.chemistry.kz/index.php/kaznu/article/view/344.