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Juliani, H.R.; Kapteyn, J.; Jones, D.; Koroch, A.R.; Wang, M.; Charles, D.; Simon, J.E., Application of Near-infrared Spectroscopy in Quality Control and Determination of Adulteration of African Essential Oils, Phytochem. Anal., 2006, 17, 2, 121-128, https://doi.org/10.1002/pca.895 . [all data]