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\bibitem{Alfeld_etal2015} {\textquotedblleft}\textit{Neutron activation autoradiography and scanning macro-XRF of Rembrandt van Rijn{\textquoteright}s Susanna and the Elders (Gemaldegalerie Berlin) : a comparison of two methods for imaging of historical paintings with elemental contrast}{\textquotedblright}. Alfeld M, Laurenze-Landsberg C, Denker A, Janssens K, Noble P, Applied physics A : materials science \& processing \textbf{119}, 795 (2015).   http://doi.org/10.1007/S00339-015-9081-8

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