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\bibitem{Cidu_etal1995} {\textquotedblleft}\textit{Hydrogeochemical exploration for gold in the Osilo area, Sardinia, Italy}{\textquotedblright}. Cidu R, Fanfani L, Shand P, Edmunds WM, Van {\textquoteright}t dack L, Gijbels R, Applied geochemistry \textbf{10}, 517 (1995).   http://doi.org/10.1016/0883-2927(95)00022-4

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