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\bibitem{Alloul_etal2021} {\textquotedblleft}\textit{Operational strategies to selectively produce purple bacteria for microbial protein in raceway reactors}{\textquotedblright}. Alloul A, Cerruti M, Adamczyk D, Weissbrodt DG, Vlaeminck SE, Environmental Science \& Technology \textbf{55}, 8278 (2021).   http://doi.org/10.1021/ACS.EST.0C08204

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