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\bibitem{Darchuk_etal2010} {\textquotedblleft}\textit{Argentinean prehistoric pigments{\textquoteright} study by combined SEM/EDX and molecular spectroscopy}{\textquotedblright}. Darchuk L, Tsybrii Z, Worobiec A, V{\'a}zquez C, Palacios OM, Stefaniak EA, Gatto Rotondo G, Sizov F, Van Grieken R, Spectrochimica acta: part A: molecular and biomolecular spectroscopy \textbf{75}, 1398 (2010).   http://doi.org/10.1016/J.SAA.2010.01.006

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