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\bibitem{Janssen_etal2010} {\textquotedblleft}\textit{Do gaseous pollutants and particulate matter endanger our world heritage? A study in the Museum Plantin-Moretus, Antwerp}{\textquotedblright}. Janssen E, Kontozova-Deutsch V, Krupi{\'n}ska B, Moris H, Peckstadt A, van Bos M, Watteeuw L, Van Grieken R,  (2010)

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