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\bibitem{VanGrieken_etal2009} {\textquotedblleft}\textit{X ray fluorescence in member states: Belgium: integration of analysis techniques of different scales using X ray induced and electron induced X ray spectrometry for applications in preventive conservation and environmental monitoring}{\textquotedblright}. Van Grieken R, Potgieter-Vermaak S, Darchuk L, Worobiec A, XRF newsletter , 9 (2009)

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