Licausi, E., N. Di Virgilio, A. Rotondi, and M. Magli. “Olive Tree in Emilia Romagna Region: An Ancient Crop, a New Environmental and Cultural Economic Resource”. Italian Journal of Agronomy, vol. 5, no. 1, Mar. 2010, pp. 27-34, doi:10.4081/ija.2010.27.