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♦ ¹Orłowski, G., & Czarnecka, J. (2013). Re-evaluation of the role of the grey partridge Perdix perdix as a disperser of arable weed seeds. Journal of ornithology, 154(1), 139-144.
♦ ²HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández