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\bibitem{Proost_etal2003} {\textquotedblleft}\textit{Characterization of a polycapillary lens for use in micro-XANES experiments}{\textquotedblright}. Proost K, Vincze L, Janssens K, Gao N, Bulska E, Schreiner M, Falkenberg G, X-ray spectrometry \textbf{32}, 215 (2003).   http://doi.org/10.1002/XRS.635

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