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\bibitem{Girones_etal2010} Girones, Z., Marchetti, A., Mena, O., Pena-Garay, C., \& Rius, N. (2010). Cosmological data analysis of f(R) gravity models. \textit{J. Cosmol. Astropart. Phys.}, \textit{11}(11), 004--18pp.

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