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\bibitem{Injuk_etal1997} {\textquotedblleft}\textit{Performance and characteristics of two total-reflection X-ray fluorescence and a particle induced X-ray emission setup for aerosol analysis}{\textquotedblright}. Injuk J, Van Grieken R, Klockenk{\"a}mper R, von Bohlen A, Kump P, Spectrochimica acta: part B : atomic spectroscopy \textbf{52}, 977 (1997).   http://doi.org/10.1016/S0584-8547(97)00028-1

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