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\bibitem{Smits_etal2012} {\textquotedblleft}\textit{Exhaust composition of a small diesel engine}{\textquotedblright}. Smits M, Vanpachtenbeke F, Hauchecorne B, van Langenhove H, Demeestere K, Lenaerts S, Communications in agricultural and applied biological sciences \textbf{77}, 85 (2012)

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