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Kowalczyk, A.; Dabrowska, J.; Mardarowicz, M.; Fecka, I.; Cisowski, W., Comparative analysis of the composition of the volatile oils of two forms of Achillea crithmifolia W. et. K. - diploid and tetraploid, Z. Naturforsch. C:, 2003, 58, 146-147. [all data]