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\bibitem{Ruelle_etal2007} Ruelle, J., Yoshida, M., Clair, B., \& Thibaut, B. (2007). Peculiar tension wood structure in Laetia procera (Poepp.) Eichl. (Flacourtiaceae). \textit{Trees-Struct. Funct.}, \textit{21}(3), 345--355.

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