Transference of metals in the soil‐food chain system:   of Caspian Sea sturgeons by V. A. Chaplygin, T. S. Ershova, V. F. Zaitsev

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The content of chemical elements in <i>Trаpa nаtans</i> and <i>Nymphoides peltata</i> of the Volga Delta by A. S. Kuanova, T. S. Ershova, V. F. Zaitsev, V. A. Chaplygin, N. V. Litvinova

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Specific features of accumulation of chemical elements by some types of macrophytes of the Volga Delta by A. S. Kyanova, T. S. Ershova, V. A. Chaplygin, V. F. Zaitsev, N. V. Litvinova, N. G. Shaboyants, A. A. Matveeva

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