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\bibitem{Voordeckers_etal2021} {\textquotedblleft}\textit{The impact of street canyon morphology and traffic volume on NO$_{2}$ values in the street canyons of Antwerp}{\textquotedblright}. Voordeckers D, Meysman FJR, Billen P, Tytgat T, Van Acker M, Building And Environment \textbf{197}, 107825 (2021).   http://doi.org/10.1016/J.BUILDENV.2021.107825

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