1. Avtsin, A.P., Zhavoronkov, A.A., Rish, N.A., and Strochkova, L.S., Mikroelementozy cheloveka (Human Microelementoses), Moscow: Meditsina, 1991.
2. Agadzhanyan, N.A. and Skal’nyi, A.V., Khimicheskie elementy v srede obitaniya i ekologicheskii portret cheloveka (Chemical Elements in the Environment and the Environmental Portrait of the Man), Moscow: KMK, 2001.
3. Kabata-Pendias, A. and Pendias, Kh., Mikroelementy v pochvakh i rasteniyakh (Microelements in Soils and Plants), Moscow: Mir, 1989.
4. Lovkova, M.Ya., Buzuk, G.N., Sokolova, S.M., and Buzuk, L.N., Prikl. Biokhim. Mikrobiol., 2005, vol. 41, no. 3, pp. 340–346.
5. Lovkova, M.Ya., Rabinovich, A.M., Ponomareva, S.M., Buzuk, G.N., and Sokolova, S.M., Pochemu rasteniya lechat (Why Do Plants Heal?), Moscow: Nauka, 1990.