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2. O. Kamoen, in “Pathogenesis ofBotrytis cinereaStudied on Tuberous Begonia,” Verhandelingen Rijksstation voor Plantenziekten Publicatie Nr 23, 1976, pp. 1–14.
3. N. Sakurai, R. Yamamoto, and Y. Kato, in “Plant Cell Wall and Polysaccharides,” 1st Ed., Baifukan, Tokyo, 1991.