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\bibitem{Clair_etal2003} Clair, B., Ruelle, J., \& Thibaut, B. (2003). Relationship between growth stress, mechanical-physical properties and proportion of fibre with gelatinous layer in chestnut (Castanea sativa Mill.). \textit{Holzforschung}, \textit{57}(2), 189--195.

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