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\bibitem{deGendt_etal1995} {\textquotedblleft}\textit{Quantitative analysis of iron-rich and other oxide-based samples by means of glow discharge mass spectrometry}{\textquotedblright}. de Gendt S, Schelles W, Van Grieken R, M{\"u}ller V, Journal of analytical atomic spectrometry \textbf{10}, 681 (1995).   http://doi.org/10.1039/JA9951000681

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