@article{Kolesnikov_Moshchenko_Kuzina_Kazeev_Akimenko_2019, title={Development of Regional Maximum Permissible Concentrations of Oil, Lead, Chromium, Nickel, and Copper in the Ordinary Black Soils of Central Ciscaucasia}, volume={8}, url={https://amazoniainvestiga.info/index.php/amazonia/article/view/948}, number={24}, journal={Amazonia Investiga}, author={Kolesnikov, Sergey and Moshchenko, Daria and Kuzina, Anna and Kazeev, Kamil and Akimenko, Yuliya}, year={2019}, month={Nov.}, pages={38-44}