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\bibitem{Geldof_etal2019} {\textquotedblleft}\textit{Methods and materials of the Amsterdam sunflowers}{\textquotedblright}. Geldof M, Monico L, Johnson DH, Miliani C, Romani A, Grazia C, Buti D, Brunetti BG, Janssens K, Van der Snickt G, Vanmeert F page 85 (2019).

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