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Lu, G.; Lu G, Edwards; CG, Fellman; JK, Mattinson; DS, Navazio J. (February 2003). “Biosynthetic origin of geosmin in red beets (Beta vulgaris L.).”. Journal of Agricultural and Food Chemistry (American Chemical Society) 12 (51(4)): 1026–9. doi:10.1021/jf020905r. PMID12568567.