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\bibitem{Treiger_etal1993} {\textquotedblleft}\textit{Studying aerosol samples by non-linear mapping of electron probe microanalysis data}{\textquotedblright}. Treiger B, van Malderen H, Bondarenko I, van Espen P, Van Grieken R, Analytica chimica acta \textbf{284}, 119 (1993).   http://doi.org/10.1016/0003-2670(93)80014-C

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