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\bibitem{Monico_etal2011} {\textquotedblleft}\textit{Degradation process of lead chromate in paintings by Vincent van Gogh studied by means of synchrotron X-ray spectromicroscopy and related methods : 2 : original paint layer samples}{\textquotedblright}. Monico L, van der Snickt G, Janssens K, de Nolf W, Miliani C, Dik J, Radepont M, Hendriks E, Geldof M, Cotte M, Analytical chemistry \textbf{83}, 1224 (2011).   http://doi.org/10.1021/AC1025122

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