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\bibitem{Horemans_etal2008} {\textquotedblleft}\textit{Airborne particulate matter and BTEX in office environments}{\textquotedblright}. Horemans B, Worobiec A, Buczy{\'n}ska A, van Meel K, Van Grieken R, Journal of environmental monitoring \textbf{10}, 867 (2008).   http://doi.org/10.1039/B804475A

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