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\bibitem{Bruegmann_etal1992} {\textquotedblleft}\textit{Geochemistry of suspended matter from the Baltic Sea: 2: results of bulk trace metal analysis by AAS}{\textquotedblright}. Br{\"u}gmann L, Bernard PC, Van Grieken R, Marine chemistry \textbf{38}, 303 (1992).   http://doi.org/10.1016/0304-4203(92)90039-D

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