Economou, G., G. Panagopoulos, P. Tarantilis, D. Kalivas, V. Kotoulas, I.S. Travlos, M. Polysiou and A. Karamanos (2011). Variability in essential oil content and composition of Origanum hirtum L., Origanum onites L., Coridothymus capitatus (L.) and Satureja thymbra L. populations from the Greek island Ikaria. Industrial Crops and Products 33(1), 236-241.
https://doi.org/10.1016/j.indcrop.2010.10.021