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\bibitem{Ma_etal2019} {\textquotedblleft}\textit{Revealing the distribution of metal carboxylates in oil paint from the micro- to nanoscale}{\textquotedblright}. Ma X, Beltran V, Ramer G, Pavlidis G, Parkinson DY, Thoury M, Meldrum T, Centrone A, Berrie BH, Angewandte Chemie: international edition in English \textbf{58}, 11652 (2019).   http://doi.org/10.1002/ANIE.201903553

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