Sukharev , S. et al. 2021. SCREENING OF THE CONTENT OF SOME HEAVY METALS AT THE HUMUS SOIL HORIZON OF THE TRANSCARPATHIAN REGION. Ukrainian Chemistry Journal. 87, 2 (Mar. 2021), 107–116. DOI:https://doi.org/10.33609/2708-129X.87.02.2021.107-116.