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\bibitem{Li_etal2022} {\textquotedblleft}\textit{An elliptical blade is not a true ellipse, but a superellipse : evidence from two Michelia species}{\textquotedblright}. Li Y, Niklas KJ, Gielis J, Niinemets {\"U}, Schrader J, Wang R, Shi P, Journal of forestry research \textbf{33}, 1341 (2022).   http://doi.org/10.1007/S11676-021-01385-X

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