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\bibitem{Kontozova_etal2005} {\textquotedblleft}\textit{Characterization of air pollutants observed in three European cathedrals: is the protective glazing really effective?}{\textquotedblright}.Kontozova V, Godoi RHM, Spolnik Z, Worobiec A, Deutsch F, Van Grieken R, Rivista della Stazione sperimentale del vetro \textbf{3}, 13 (2005)

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