1. Yu. N. Vodyanitskii, “Assessment of the total toxicological pollution of soils by heavy metals and metalloids,” Agrokhimiya, No. 2, 56–63 (2017).
2. Yu. N. Vodyanitskii, D. V. Ladonin, and A. T. Savichev, Soil Pollution by Heavy Metals (Moscow, 2012) [in Russian].
3. E. L. Vorobeichik, O. F. Sadykov, and M. G. Farafontov, Ecological Standardization of Technogenic Pollution of Terrestrial Ecosystems (Local Level) (Nauka, Yekaterinburg, 1994) [in Russian].
4. A. I. Ivanov, P. A. Sukhanov, Zh. A. Ivanova, and T. I. Yakovleva, “Agroecological significance of the degree of cultivation of sandy soddy-podzolic soils under Pb and Cd pollution,” Agrokhimiya, No. 4, 70–78 (2019). https://doi.org/10.1134/S0002188119040070
5. V. B. Il’in, “Heavy metals in the soil-crop system,” Eurasian Soil Sci. 40, 993–999 (2007).