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Coleman, Leslie, C. Diseases of the Areca Palm (Areca catechu L.). (Ann. 
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Colin, H. Hydrolyse de quelques polysaccharides par le Botrytis cinerea, 
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Corti, Alfredo. Le Galle della Valtellina. III contributo alla conoscenza della 
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Crawford, D.L. Castilla Rubber Pests in Mexico. (Americ. Review Trop. 
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— Bericht der landwirtschaftlichen Versuchsstation Colmar i.E. (Ibid. p. 457—459.) 
— Bericht des Kais, Biologisch-Landwirtschaftlichen Instituts Amani, (Ibid. 
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Eulefeld, Absterben in Fichtenkultur, veranlaßt durch Rhizina undulata, 
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