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\bibitem{Ilgrande_etal2019} {\textquotedblleft}\textit{Media optimization, strain compatibility, and low-shear modeled microgravity exposure of synthetic microbial communities for urine nitrification in regenerative life-support systems}{\textquotedblright}. Ilgrande C, Defoirdt T, Vlaeminck SE, Boon N, Clauwaert P, Astrobiology \textbf{19}, 1353 (2019).   http://doi.org/10.1089/AST.2018.1981

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