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\bibitem{Capson-Tojo_etal2020} {\textquotedblleft}\textit{Purple phototrophic bacteria for resource recovery : challenges and opportunities}{\textquotedblright}. Capson-Tojo G, Batstone DJ, Grassino M, Vlaeminck SE, Puyol D, Verstraete W, Kleerebezem R, Oehmen A, Ghimire A, Pikaar I, Lema JM, H{\"u}lsen T, Grassino M, Hulsen T, Biotechnology Advances \textbf{43}, 107567 (2020).   http://doi.org/10.1016/J.BIOTECHADV.2020.107567

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