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\bibitem{Michalet_etal2013} Michalet, S., Rohr, J., Warshan, D., Bardon, C., Roggy, J. - C., Domenach, A. - M., et al. (2013). Phytochemical analysis of mature tree root exudates in situ and their role in shaping soil microbial communities in relation to tree N-acquisition strategy. \textit{Plant Physiol. Biochem.}, \textit{72}, 169--177.

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