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\bibitem{Tian_etal2020} {\textquotedblleft}\textit{Comparison of seed morphology of two ginkgo cultivars}{\textquotedblright}. Tian F, Wang Y, Sandhu HS, Gielis J, Shi P, Journal Of Forestry Research \textbf{31}, 751 (2020).   http://doi.org/10.1007/S11676-018-0770-Y

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