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\bibitem{Spanoghe_etal2021} {\textquotedblleft}\textit{Microbial food from light, carbon dioxide and hydrogen gas : kinetic, stoichiometric and nutritional potential of three purple bacteria}{\textquotedblright}. Spanoghe J, Vermeir P, Vlaeminck SE, Bioresource Technology \textbf{337}, 125364 (2021).   http://doi.org/10.1016/J.BIORTECH.2021.125364

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