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\bibitem{Craine_etal2018} Craine, J. M., Elmore, A. J., Wang, L., Aranibar, J., Bauters, M., Boeckx, P., et al. (2018). Isotopic evidence for oligotrophication of terrestrial ecosystems. \textit{Nature Ecology \& Evolution}, \textit{2}(11), 1735--1744.

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