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\bibitem{Dooley_etal2018} {\textquotedblleft}\textit{Separating two painting campaigns in Saul and David, attributed to Rembrandt, using macroscale reflectance and XRF imaging spectroscopies and microscale paint analysis}{\textquotedblright}. Dooley KA, Gifford EM, van Loon A, Noble P, Zeibel JG, Conover DM, Alfeld M, van der Snickt G, Legrand S, Janssens K, Dik J, Delaney JK, Heritage science \textbf{6}, 46 (2018).   http://doi.org/10.1186/S40494-018-0212-3

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