Secchi Disk Depth or Turbidity, Which Is Better for Assessing Environmental Quality in Eutrophic Waters? A Case Study in a Shallow Hypereutrophic Reservoir by Mikhail S. Golubkov, Sergey M. Golubkov

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The ballad genre and its transformation in A. Galich’s song “Queen of the Mainland” by Aleksandr V. Markov, Mikhail M. Golubkov

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THE CONCEPTS OF HISTORICAL AND NON-HISTORICAL IN AESTHETIC AND PHILOSOPHICAL SYSTEM OF THE NOVEL “THE AVIATOR” BY E. VODOLAZKIN by Mariia Vasilevna Bochkina, Mikhail Mikhailovich Golubkov

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Impact of the Construction of New Port Facilities on the Biomass and Species Composition of Phytoplankton in the Neva Estuary (Baltic Sea) by Mikhail S. Golubkov, Vera N. Nikulina, Sergey M. Golubkov

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Stable C and N Isotope Composition of Suspended Particulate Organic Matter in the Neva Estuary: The Role of Abiotic Factors, Productivity, and Phytoplankton Taxonomic Composition by Mikhail S. Golubkov, Vera N. Nikulina, Alexei V. Tiunov, Sergey M. Golubkov

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Biotic interactions, energy pathways and trigger factors of ecosystem dynamics in shallow saline lakes by Sergei M. Golubkov, Mikhail S. Golubkov, Evgenia V. Balushkina, Larisa F. Litvinchuk

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