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\bibitem{Alloul_etal2021} {\textquotedblleft}\textit{Cocultivating aerobic heterotrophs and purple bacteria for microbial protein in sequential photo- and chemotrophic reactors}{\textquotedblright}. Alloul A, Muys M, Hertoghs N, Kerckhof F-M, Vlaeminck SE, Bioresource Technology \textbf{319}, 124192 (2021).   http://doi.org/10.1016/J.BIORTECH.2020.124192

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