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\bibitem{Vandekerckhove_etal2020} {\textquotedblleft}\textit{Pioneering on single-sludge nitrification/denitrification at 50~{\textdegree}C}{\textquotedblright}. Vandekerckhove TGL, Boon N, Vlaeminck SE, Chemosphere \textbf{252}, 126527 (2020).   http://doi.org/10.1016/J.CHEMOSPHERE.2020.126527

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