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Ferraz, A.B.F.; Limberger, R.P.; Bordignon, S.A.L.; von Poser, G.L.; Henriques, A.T., Essential oil composition of six Hypericum species from southern Brazil, Flavour Fragr. J., 2005, 20, 3, 335-339, https://doi.org/10.1002/ffj.1435 . [all data]