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\bibitem{Szaloki_etal2006} {\textquotedblleft}\textit{X-ray spectrometry}{\textquotedblright}. Szal{\'o}ki I, Os{\'a}n J, Van Grieken RE, Analytical chemistry \textbf{78}, 4069 (2006).   http://doi.org/10.1021/AC060688J

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