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\bibitem{Osan_etal2007} {\textquotedblleft}\textit{Comparison of sediment pollution in the rivers of the Hungarian Upper Tisza Region using non-destructive analytical techniques}{\textquotedblright}. Os{\'a}n J, T{\"o}r{\"o}k S, Alf{\"o}ldy B, Alsecz A, Falkenberg G, Baik SY, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy \textbf{62}, 123 (2007).   http://doi.org/10.1016/J.SAB.2007.02.005

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