%0 Journal Article %T HEAVY METAL (Cu, Zn, Fe, Mn, Pb, Cd) CONCENTRATION IN SOILS OF TYUMEN %A Petukhov, A.S. %A Kremleva, T.A. %A Khritokhin, N.A. %A Petukhova, G.A. %A Kaidunova, P.I. %K %J Bulletin of Nizhnevartovsk State University %D 2020 %N %P 7 %I Nizhnevartovsk State University