Sysa, A.G.S. (2021) “Toxicological characteristics of rare earth elements erbium and europium as ingredients of biologically active food additives”, Journal of the Belarusian State University. Ecology, (4), pp. 39–51. Available at: https://journals.bsu.by/index.php/ecology/article/view/3643 (Accessed: 17 July 2026).