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\bibitem{Janssens_etal1988} {\textquotedblleft}\textit{Increased accuracy in the automated interpretation of large epma data sets by the use of an expert system}{\textquotedblright}. Janssens K, Vanborm W, van Espen P, Journal of research of the National Bureau of Standards (1934) \textbf{93}, 260 (1988).   http://doi.org/10.6028/JRES.093.037

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