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\bibitem{Schalm_etal2016} {\textquotedblleft}\textit{The corrosion process of sterling silver exposed to a Na2S solution: monitoring and characterizing the complex surface evolution using a multi-analytical approach}{\textquotedblright}. Schalm O, Crabb{\'e} A, Storme P, Wiesinger R, Gambirasi A, Grieten E, Tack P, Bauters S, Kleber C, Favaro M, Schryvers D, Vincze L, Terryn H, Patelli A, Applied Physics A-Materials Science \& Processing \textbf{122}, 903 (2016).   http://doi.org/10.1007/s00339-016-0436-6

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