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\bibitem{Fredrickx_etal2004} {\textquotedblleft}\textit{EPMA and {\textmu}-SRXRF analysis and TEM-based microstructure characterization of a set of Roman glass fragments}{\textquotedblright}. Fredrickx P, de Ryck I, Janssens K, Schryvers D, Petit J-P, D{\"o}cking H, X-ray spectrometry \textbf{33}, 326 (2004).   http://doi.org/10.1002/xrs.734

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