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\bibitem{Harko_etal2018} Harko, T., Koivisto, T. S., Lobo, F. S. N., Olmo, G. J., \& Rubiera-Garcia, D. (2018). Coupling matter in modified Q gravity. \textit{Phys. Rev. D}, \textit{98}(8), 084043--13pp.

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