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\bibitem{Kempenaers_etal2000} {\textquotedblleft}\textit{The use of synchrotron micro-XRF for characterisation of the micro-heterogeneity of low-Z reference materials}{\textquotedblright}. Kempenaers L, Vincze L, Janssens K, Spectrochimica acta: part B : atomic spectroscopy \textbf{55}, 651 (2000).   http://doi.org/10.1016/S0584-8547(00)00207-X

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