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\bibitem{Sauter_etal1979} {\textquotedblleft}\textit{Trace analysis of estuarine brown algae by energy-dispersive X-ray fluorescence}{\textquotedblright}. Sauter L, Van der Ben D, Van Grieken R, X-ray spectrometry \textbf{8}, 159 (1979).   http://doi.org/10.1002/XRS.1300080405

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