Karyotis, T., G. Arampatzis, A. Panagopoulos, E. Hatzigiannakis, E. Tziritis, K. Karyoti, and J. Vrouchakis. “Nutrients, Trace Elements and Water Deficit in Greek Soils Cultivated With Olive Trees”. EQA - International Journal of Environmental Quality, vol. 13, no. 13, Jan. 2014, pp. 9-20, doi:10.6092/issn.2281-4485/4536.