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Orav, A.; Stulova, I.; Kailas, T.; Müürisepp, M., Effect of storage on the essential oil composition of piper nigrum L. fruits of different ripening states, J. Agric. Food Chem., 2004, 52, 9, 2582-2586, https://doi.org/10.1021/jf030635s . [all data]