00748naa#a2200181#i#450# EN\\bibl\6989 20240703131932.3 20220218b2022####ek#y0engy0150####ca RU MONITORING OF THE QUALITY OF SURFACE WATERS OF THE USMAN RIVER WITHIN THE VORONEZH STATE NATURAL BIOSPHERE RESERVE Conference article/thesis Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2022 4 с. Conference article/thesis local Лесное хозяйство. Лесоводство. 630 Kudaeva K. A. Yablonskih Lidiya Aleksandrovna Butsik A. A. bibl.vgltu.ru