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\bibitem{Silva_etal2015} {\textquotedblleft}\textit{A large area full-field EDXRF imaging system based on a THCOBRA gaseous detector}{\textquotedblright}. Silva ALM, Carvalho ML, Janssens K, Veloso JFCA, Journal of analytical atomic spectrometry \textbf{30}, 343 (2015).   http://doi.org/10.1039/C4JA00301B

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